Comparatives with daha and Ablative

English builds comparatives two ways — "bigger" with -er, "more beautiful" with a separate word — and adds "than" to name what you're comparing against. Turkish does neither. The adjective never changes shape: you just put daha "more" in front of it, and you mark the thing you compare against with the ablative case -DAn "from." So "bigger than me" is literally "from-me more big" — benden daha büyük. This page teaches that pattern, the "less" version with daha az, and the surprising fact that daha is often optional.

The basic comparative: daha + adjective

To make any adjective comparative, place daha "more" immediately before it. daha is a separate, invariant word — it never harmonizes, never attaches to the adjective. The adjective itself stays in its plain form.

• büyük "big" → daha büyük "bigger"
• güzel "beautiful" → daha güzel "more beautiful"
• pahalı "expensive" → daha pahalı "more expensive"

Notice there is no -er and no "more"-versus-"-er" choice to make. Every adjective, short or long, native or borrowed, forms its comparative the same way: daha in front. English speakers who want to say "bigger" reach for an ending; in Turkish you reach for daha.

"Than X" is the ablative — there is no word for "than"

Here is the part no English speaker anticipates. To name the standard — the "than X" — you put X in the ablative, the -DAn ending. There is no separate word for "than"; the case ending carries that whole meaning. The image matches the ablative's core sense of "from": the comparison flows out from the standard.

• "than me" → benden (ben + den)
• "than you" → senden
• "than Ahmet" → Ahmet'ten

The skeleton is [Standard]-ABLATIVE + daha + adjective. So benden daha akıllı parses as "from-me more clever" = "cleverer than me." If you ever find yourself hunting for a Turkish word meaning "than," stop: the ending -DAn is the "than."

The pronoun ablatives are worth knowing cold, because comparisons use them constantly: benden (than me), senden (than you), ondan (than him/her/it), bizden (than us), sizden (than you-pl), onlardan (than them).

daha is often optional

Because the ablative already builds the comparison on its own, daha is frequently dropped when the standard is present. Both of these mean "Ali is taller than Ahmet":

• Ali, Ahmet'ten daha uzun.
• Ali, Ahmet'ten uzun.

The ablative does the comparative work by itself; daha simply adds emphasis ("even taller," "noticeably stronger"). Keep daha when you want that emphasis or when there is no explicit standard in the sentence — because then daha is the only thing signalling a comparison at all: Bu daha güzel "This one is nicer" (nicer than what is understood from context).

"Less": daha az

To say something is less X, use daha az "less" before the adjective, with the standard again in the ablative. az on its own means "little / few," and daha az means "less."

In practice Turkish speakers often prefer to flip to the positive ("more X" of the opposite quality) — daha kolay "easier" rather than daha az zor "less hard" — but daha az is perfectly correct and useful when no neat opposite exists.

The ablative -DAn hardens to -tan after voiceless stems

When you attach the ablative, remember its consonant hardening: after a voiceless final consonant (one of f, s, t, k, ç, ş, h, p — mnemonic fıstıkçı şahap), the d becomes t. This bites in comparisons because so many standards end in those sounds.

• kitap "book" → kitap*tan (than a book)
• uçak "plane" → uçak*tan (than a plane)
• bu ağaç "this tree" → ağaç*tan (than a tree)

So write uçaktan, kitaptan, ağaçtan — never uçakdan. The vowel of the ending also harmonizes (-den after front vowels, -dan after back), giving four surface shapes: -den, -dan, -ten, -tan.

Common mistakes

Two habits cause almost every mistake: trying to add -er to the adjective, and looking for a word meaning "than." Replace both reflexes with "daha + adjective, standard in the ablative" and the rest follows.

Key takeaways

• The comparative is daha + adjective — a separate, invariant word; no -er, no irregular forms: daha büyük, daha güzel.
• "Than X" is the ablative -DAn on X — there is no word for "than": benden daha uzun "taller than me."
• When the ablative standard is present, daha is optional: Ahmet'ten uzun = Ahmet'ten daha uzun.
• "Less" is daha az
  • adjective: daha az zararlı "less harmful."
• The ablative hardens to -tan after voiceless stems: uçaktan, kitaptan, never uçakdan.
• For "most" use en instead — see superlatives with en — and don't mix the two; the daha vs en guide keeps them straight.