ほど～ない

The pattern ほど～ない is used to express that something does not reach the same level or extent as something else. It translates to "not as … as" or "not to the extent of" in English. This is one of the most common ways to make comparative statements in Japanese where one item falls short of another.

Basic comparison: A は B ほど ～ない

The thing being compared to (the standard) is marked with ほど, and the predicate is in the negative form. The structure states that A does not reach the level of B.

The item after ほど is the higher standard – the thing that has more of the quality in question.

With verbs

ほど～ない can also be used with verbs in the negative to express that an action does not happen to the same degree.

With それほど / そんなに

When the comparison standard is implied or contextual rather than explicit, それほど or そんなに is used, meaning "not that much" or "not to that extent".

Common pattern: 思ったほど～ない

A very frequent and natural expression is おもった思ったほど + negative, meaning "not as much as I thought".

Distinction from より

While より is used to say something is more than something else (A は B より ～), ほどから～ない says something is not as much as something else (A は B ほど ～ない). They express the same comparison from opposite directions:

• とうきょう東京はおおさか大阪よりおおきい大きい。 – Tokyo is bigger than Osaka.
• おおさか大阪はとうきょう東京ほどおおきくない大きくない。 – Osaka is not as big as Tokyo.