If you come to Romanian from English or Latin, you arrive braced for irregular comparatives. English makes you memorize good → better → best, bad → worse → worst, much → more → most — whole new word-shapes, unrelated to the base. Latin does the same with bonus → melior → optimus. So it is natural to assume Romanian hides a special word for "better."
It does not. This is one of the places where Romanian is refreshingly regular: its adjectives have essentially no suppletion. "Good" is bun; "better" is just mai bun — mai plus the same adjective, exactly the pattern from the comparative page. There is no *melior, no special "better" word. The single most useful thing to internalize here is therefore a non-rule: stop inventing irregular comparatives. Whatever the adjective, the comparative is mai + that adjective, and the superlative is cel mai + that adjective.
The "irregular" adjectives that aren't
Take the three adjectives that are suppletive in English and watch them stay perfectly regular in Romanian.
| Adjective | Meaning | Comparative | Superlative |
|---|---|---|---|
| bun | good | mai bun | cel mai bun |
| rău | bad | mai rău | cel mai rău |
| mare | big | mai mare | cel mai mare |
| mic | small | mai mic | cel mai mic |
The adjective still does its ordinary four-form agreement underneath mai: bun / bună / buni / bune gives mai bun / mai bună / mai buni / mai bune. Nothing about comparison changes the stem.
Vinul ăsta e mai bun decât cel de anul trecut.
This wine is better than last year's.
Azi mă simt mai bine, dar starea e mai rea decât pare.
Today I feel better, but the situation is worse than it looks.
E cea mai bună brânză din regiune.
It's the best cheese in the region.
Where the suppletion-like forms really live: the adverbs
So why do learners swear they have heard a "special" comparative? Because there is one — but it belongs to the adverbs, not the adjectives. Romanian keeps a clean split: bun is the adjective ("good," modifies nouns), while bine is the adverb ("well," modifies verbs). The adverb bine has its own base form distinct from the adjective, and that is the closest thing Romanian has to suppletion.
| Adverb | Meaning | Comparative | Superlative |
|---|---|---|---|
| bine | well | mai bine | cel mai bine |
| rău | badly | mai rău | cel mai rău |
| mult | much, a lot | mai mult | cel mai mult |
| puțin | little, few | mai puțin | cel mai puțin |
The key insight: even here the comparison is still regular — it is mai bine, not a brand-new word like English better. What looks "irregular" is only that the adverb bine has a different shape from the adjective bun. English collapses both into "good/better" (using good loosely as an adverb in casual speech and well/better in careful speech); Romanian keeps them apart but still forms the comparative the ordinary way.
Cânți mult mai bine decât acum un an.
You sing much better than a year ago.
Îmi place cel mai mult marea toamna, când nu e aglomerat.
I like the sea best in autumn, when it's not crowded.
A ieșit mai rău decât ne așteptam.
It turned out worse than we expected.
The one genuine quirk: optim, maxim, minim
There is a thin layer of borrowed Latinate superlatives that Romanian uses alongside the regular forms — optim ("optimal"), maxim ("maximum"), minim ("minimum"), suprem ("supreme"), superior / inferior ("higher / lower"). These are not part of the everyday comparison system; they are learned adjectives in their own right, used in technical, administrative, or formal registers. You would never replace cel mai bun with optim in conversation — optim means "optimal," a slightly different idea.
Condițiile sunt optime pentru drumeție.
Conditions are optimal for a hike. (formal/technical)
Temperatura maximă de mâine va fi de treizeci de grade.
Tomorrow's maximum temperature will be thirty degrees. (formal)
These behave like normal adjectives that happen to carry a superlative meaning baked in — treat them as vocabulary, not as a comparison rule.
Common Mistakes
Don't import English suppletion by inventing a special "better" word:
❌ Mâncarea de aici e meior decât acasă.
Incorrect — there is no special word for 'better'; use mai bun(ă).
✅ Mâncarea de aici e mai bună decât acasă.
The food here is better than at home.
Don't use the adjective bun where the verb needs the adverb bine:
❌ Vorbește mai bun românește acum.
Incorrect — modifying a verb needs the adverb: mai bine.
✅ Vorbește mai bine românește acum.
He speaks Romanian better now.
Don't leave bun uninflected when it modifies a noun in the comparative:
❌ Sunt cele mai bun prăjituri din oraș.
Incorrect — the adjective agrees with feminine plural 'prăjituri' → bune.
✅ Sunt cele mai bune prăjituri din oraș.
They're the best cakes in town.
Don't reach for optim as a casual stand-in for "the best":
❌ E restaurantul optim din zonă.
Odd — 'optim' means 'optimal'; for 'the best' use cel mai bun.
✅ E cel mai bun restaurant din zonă.
It's the best restaurant in the area.
Key Takeaways
- Romanian adjectives have no suppletion: bun → mai bun, rău → mai rău, mare → mai mare. There is no better-type word.
- The only suppletion-like forms are adverbs with a base distinct from the adjective — chiefly bine ("well") vs. bun ("good") — but even these compare regularly: mai bine, not a new word.
- Keep the adjective/adverb pair straight: un cer bun vs. gătește bine; mai bun vs. mai bine.
- Optim, maxim, minim, suprem are borrowed formal superlatives — learn them as vocabulary, not as a comparison rule.
- The practical takeaway is a non-rule: resist inventing irregular comparatives. Mai
- adjective covers everything.
Related Topics
- The Comparative (mai, mai puțin, la fel de)A2 — How Romanian builds all comparatives analytically with mai, and how the than-word splits into decât (for inequality) and ca (for equality).
- The Superlative (cel mai, cel mai puțin)A2 — How Romanian builds the relative superlative with the agreeing article cel/cea/cei/cele + mai, and the absolute superlative with foarte / extrem de.
- Comparison of AdverbsB1 — How Romanian compares adverbs — analytic mai … decât, la fel de … ca, and cel mai — plus the suppletive set bine→mai bine, mult→mai mult, puțin→mai puțin, rău→mai rău.
- Adverbs of Degree (foarte, prea, cam, tot mai)A2 — Romanian degree adverbs that intensify or soften — foarte (very), prea (too much), destul de (quite), the hedging cam (a bit, sort of), atât de (so), and tot mai (increasingly).
- Intensifying Adjectives (foarte, tare, prea)A2 — Degree modifiers that strengthen or temper an adjective — foarte (very), tare (very, colloquial), prea (too), destul de (quite), cam (rather), atât de (so) — all invariable and placed before the adjective.