アントニムantonimu

1. noun, linguisticsantonym

• Synonym反対語はんたいごNeutralThe plain, neutral everyday word for an antonym, common in daily speech and at school; 「アントニム」 is a loanword with a linguistics flavor.
• Synonym対義語たいぎごWrittenThe standard term in textbooks and dictionaries for words opposite or paired in meaning or degree; more common than 「アントニム」.
• Synonym反義語はんぎごWrittenA written-style word for an antonym, less common than 「反対語」 in everyday use; synonymous with 「反意語」, which is read differently.
• Related対語ついごWrittenBroader than 「アントニム」: kanji compounds whose elements contrast in meaning, antonyms, and also face-to-face conversation.
• Related反意語はんいごWrittenAnother word for an antonym, identical in meaning to 「反義語」; today less common than 「対義語」 or 「反対語」.
• AntonymシノニムWrittenA loanword meaning synonym, also used in biology for alternative scientific names; stands opposite 「アントニム」, which means antonym.

For antonyms, everyday speech uses 「反対語」, while textbooks and dictionaries use 「対義語」; 「アントニム」 is a loanword used mainly as a linguistics term. For synonyms, say 「シノニム」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 対義語たいぎご。