A word that has the opposite meaning of another word (an antonym).
「高い」の対義語は「低い」だ。
The antonym of '高い' (tall/expensive) is '低い' (short/low).
辞書で単語の対義語を調べて語彙を増やした。
I looked up antonyms in the dictionary to expand my vocabulary.
対義語は意味を対比して理解するのに役立つ。
Antonyms help to understand meanings by contrast.