Greek has a second comparative that packs "more X" into a single word. Instead of πιο ψηλός ("taller"), you can say ψηλότερος; instead of πιο ακριβός, ακριβότερος. This is the synthetic comparative, formed with a suffix on the adjective's stem — and unlike invariable πιο, the resulting word is a fully inflected adjective that agrees with its noun. Established synthetic and analytic forms often share the same core comparison; frequency, rhythm, and familiar phrases can favor one without creating a speech-versus-writing divide.
How it's built
For a regular adjective with an established synthetic form, drop the masculine ending and add -ότερος / -ότερη / -ότερο. This describes attested forms; it is not a licence to invent a one-word comparative for every adjective:
| Positive | Comparative (m / f / n) | Meaning |
|---|---|---|
| ψηλός | ψηλότερος / ψηλότερη / ψηλότερο | taller |
| ακριβός | ακριβότερος / ακριβότερη / ακριβότερο | more expensive |
| όμορφος | ομορφότερος / ομορφότερη / ομορφότερο | more beautiful |
| έξυπνος | εξυπνότερος / εξυπνότερη / εξυπνότερο | cleverer |
| ζεστός | ζεστότερος / ζεστότερη / ζεστότερο | warmer |
Regular -ύς adjectives with an established synthetic form use -ύτερος, keeping their family's vowel: βαθύς → βαθύτερος (deeper), βαρύς → βαρύτερος (heavier), φαρδύς → φαρδύτερος (wider). Everything else about them is the same.
Ψάχνω ένα φθηνότερο εισιτήριο για την Πέμπτη το πρωί.
psáchno éna fthinótero isitírio ya tin Pémpti to proí
I'm looking for a cheaper ticket for Thursday morning.
Το δεύτερο διαμέρισμα ήταν φωτεινότερο και πιο ήσυχο.
to dhéftero dhiamérizma ítan fotinótero ke pio ísicho
The second flat was brighter and quieter.
Θέλω ένα ελαφρύτερο φαγητό το βράδυ, δεν πεινάω πολύ.
thélo éna elafrítero fayitó to vrádhi, dhen pináo polí
I want a lighter meal in the evening — I'm not very hungry.
Notice the second sentence pairs a synthetic comparative (φωτεινότερο) with an analytic one (πιο ήσυχο) in the same breath. That is completely normal Greek — speakers mix the two freely, choosing whichever sounds better on a given adjective.
The accent lands on the suffix — always
Here is a gift that makes this form easy to spell. The ending -ότερος is three syllables long (ό-τε-ρος), and because Greek won't let the stress fall further back than the third-from-last syllable, the accent is forced onto the -ό- of the suffix, no matter where it sat in the original adjective. So έξυπνος (stressed on έ) becomes εξυπνότερος (stressed on -ό-); όμορφος becomes ομορφότερος. You never have to wonder where the accent goes: on -ότερος it is the ό, on -ύτερος it is the ύ.
Η καινούρια υπάλληλος είναι γρηγορότερη από όλους μας.
i kenúria ipálilos íne ghrighoróteri apó ólus mas
The new employee is faster than all of us.
Φέτος ο χειμώνας είναι ψυχρότερος και πιο υγρός.
fétos o chimónas íne psichróteros ke pio ighrós
This winter is colder and damper.
It declines like any -ος / -η / -ο adjective
Because the comparative is itself an adjective, it runs through the full paradigm you already know, agreeing with its noun in gender, number and case. There is nothing new to learn — ψηλότερος declines exactly like όμορφος:
| Case | Masculine | Feminine | Neuter |
|---|---|---|---|
| Nom. sg. | ψηλότερος | ψηλότερη | ψηλότερο |
| Gen. sg. | ψηλότερου | ψηλότερης | ψηλότερου |
| Acc. sg. | ψηλότερο | ψηλότερη | ψηλότερο |
| Nom. pl. | ψηλότεροι | ψηλότερες | ψηλότερα |
| Acc. pl. | ψηλότερους | ψηλότερες | ψηλότερα |
Ζητάμε έναν πιο έμπειρο και ικανότερο συνεργάτη.
zitáme énan pio émbiro ke ikanótero sinergháti
We're looking for a more experienced and more capable partner.
Ανήκει στη νεότερη γενιά των Ελλήνων συγγραφέων.
aníki sti neóteri yeniá ton Elínon singraféon
She belongs to the younger generation of Greek writers.
Η γνώμη ενός εμπειρότερου γιατρού πάντα μετράει.
i ghnómi enós embiróteru yatrú pánda metrái
The opinion of a more experienced doctor always counts.
-τερος or πιο? When to reach for which
The two patterns often express the same core comparison — ψηλότερος = πιο ψηλός in their ordinary height reading. The practical choice is lexical and rhythmic rather than a categorical register split:
- A familiar synthetic -τερος form can be compact and strongly entrenched in common phrases (καλύτερος, μεγαλύτερος, μικρότερος, νεότερος) in both speech and writing.
- πιο + positive is fully productive in every register and is the safe default when no current synthetic form is familiar. Long or less familiar adjectives often favor it, but length alone is not a correctness rule.
Το μετρό είναι σαφώς γρηγορότερο από το λεωφορείο τέτοια ώρα.
to metró íne safós ghrighorótero apó to leoforío tétia óra
The metro is clearly faster than the bus at this time of day.
The unbreakable rule: never both
Because -τερος and πιο each already mean "more," using them together is a double comparative — as wrong in Greek as more taller is in English. Pick one road to the meaning:
Χρειαζόμαστε μια απλούστερη λύση, όχι πιο περίπλοκη.
chriazómaste mia aplústeri lísi, óchi pio períploki
We need a simpler solution, not a more complicated one.
Here απλούστερη (synthetic, "simpler") sits happily beside πιο περίπλοκη (analytic, "more complicated") — each adjective uses one comparative, and the sentence is perfect. What you must never write is ×πιο απλούστερη.
A note on the irregular handful
A small group of the commonest adjectives don't build their synthetic comparative from -ότερος at all — they are irregular, and reaching for the "regular" suffix is a beginner's mistake. καλός does not give ×καλότερος but καλύτερος; μεγάλος gives μεγαλύτερος, μικρός gives μικρότερος, κακός gives χειρότερος. This does not block standard analytic πιο καλός / πιο μεγάλος. The established stems are collected on the irregular comparatives page.
Common Mistakes
1. Combining πιο with a -τερος form. One comparative marker per adjective — never both.
❌ Ο Γιώργος είναι πιο ψηλότερος από τον Νίκο.
Incorrect — use ψηλότερος or πιο ψηλός, never both together.
✅ Ο Γιώργος είναι ψηλότερος από τον Νίκο.
o Yórghos íne psilóteros apó ton Níko
Giorgos is taller than Nikos.
2. Leaving the comparative in the masculine when the noun is feminine or neuter. It is an adjective — it must agree.
❌ Αγόρασα μια φθηνότερο βαλίτσα.
Incorrect — the comparative must agree with βαλίτσα: feminine φθηνότερη.
✅ Αγόρασα μια φθηνότερη βαλίτσα από την προηγούμενη.
aghórasa mia fthinóteri valítsa apó tin proighúmeni
I bought a cheaper suitcase than the last one.
3. Using -ύτερος on a regular -ος adjective. The default suffix is -ότερος; -ύτερος belongs to the -ύς adjectives (and a few irregulars).
❌ Αυτό το δωμάτιο είναι φωτεινύτερο.
Incorrect — a regular -ος adjective takes -ότερος: φωτεινότερο.
✅ Αυτό το δωμάτιο είναι φωτεινότερο από το διπλανό.
aftó to dhomátio íne fotinótero apó to dhiplanó
This room is brighter than the one next door.
4. Regularizing an irregular adjective. καλός, μεγάλος, μικρός and κακός do not take -ότερος.
❌ Η σημερινή ταινία ήταν καλότερη.
Incorrect — καλός is irregular: the comparative is καλύτερη, not ×καλότερη.
✅ Η σημερινή ταινία ήταν καλύτερη από τη χθεσινή.
i simeriní tenía ítan kalíteri apó ti chthesiní
Today's film was better than yesterday's.
Key Takeaways
- For regular established forms, the synthetic comparative is stem + -ότερος (ψηλότερος, ακριβότερος); regular -ύς forms use -ύτερος (βαθύτερος).
- It declines like an ordinary -ος/-η/-ο adjective and agrees with its noun — it is a full adjective, not a frozen word.
- The accent is forced onto the suffix (-ό- or -ύ-) every time, which makes the form easy to spell.
- An established -τερος form and πιο + positive often share the same core reading. Lexical familiarity and context can favor one; neither pattern belongs to only speech or writing.
- Never combine them (×πιο ψηλότερος), and never regularize the irregulars (×καλότερος → καλύτερος).
Related Topics
- Comparative With πιοA2 — The everyday way to say 'more X' in Greek — the invariable little word πιο placed in front of any gradable adjective (πιο ψηλός, πιο εύκολο) — why it never changes while the adjective still agrees with its noun, how to attach the thing you're comparing to with από, and how to say 'less' (λιγότερο) and 'as…as' (τόσο…όσο, εξίσου).
- Irregular ComparativesB1 — The small set of everyday adjectives whose one-word comparatives you have to memorise — καλός → καλύτερος, κακός → χειρότερος, μεγάλος → μεγαλύτερος, μικρός → μικρότερος, πολύς → περισσότερος, λίγος → λιγότερος — and how those forms coexist with standard analytic πιο + positive alternatives.
- Relative SuperlativeB1 — How to say 'the most X of a group' in Greek — ο πιο ψηλός, η ψηλότερη, το πιο έξυπνο — built on the single insight that the superlative is just the comparative with a definite article, why the article is obligatory and agrees with the noun, how to name the group with από or the genitive, and how it differs from the 'very X' elative.