Grammar
N4AI-drafted〜ほど〜ない
not as ~ as ~
Formation
N / V-辞書形 + ほど + 〜ない
Usage
Used to compare two things and say that A does not reach the level of B; B is the standard, and B is the higher one. 「AはBほど〜ない」 is a softer, more natural way of comparing than 「BはAより〜」 when you want to keep B as the topic of comparison. Note the predicate must be negative; you cannot say 「AはBほど高いです」.
Examples
今日は昨日ほど寒くないですね。
きょうはきのうほどさむくないですね。
Today isn't as cold as yesterday, is it?
わたしの部屋は兄の部屋ほど広くありません。
わたしのへやはあにのへやほどひろくありません。
My room is not as big as my older brother's.
日本語を話すのは、思っていたほど難しくなかった。
にほんごをはなすのは、おもっていたほどむずかしくなかった。
Speaking Japanese wasn't as hard as I had thought.