透明|とうめいtoumei[0]heiban (flat)

1. na-adjective, no-adjectivetransparent; clear
   この透明とうめいな液体えきたいには毒どくが含ふくまれている。↗

   This transparent liquid contains poison.

• Synonym澄み切ったすみきったWrittenWritten, literary word for water or sky that is perfectly clear and free of impurities; 「透明」 describes the physical property more.
• Synonym清澄せいちょうWrittenFormal written word for clear, limpid water or air; can also describe a serene state of mind.
• SynonymクリアNeutralNeutral loanword meaning clear or transparent, but also clearing or completing something, as in 「ゲームをクリア」.
• Related透徹したとうてつしたWrittenWritten word for penetrating, thorough understanding or argument; about clarity of thought, while 「透明」 is mostly for substances.
• Related半透明はんとうめいNeutralNeutral word for translucent rather than fully transparent, like frosted glass; 「透明」 means light passes through completely.
• Antonym不透明ふとうめいNeutralNeutral antonym: opaque, and figuratively unclear or unpredictable, as of prospects; the direct opposite of 「透明」.
• Antonym濁りにごりNeutralNeutral noun for muddiness or cloudiness; the opposite of 「透明」 in its clear, transparent sense.

Use 「透明」 for things light passes through or, figuratively, for openness, as in 「透明性」. For clear water or sky in written style pick 「澄み切った」 or 「清澄」; for clear thinking 「透徹した」; for translucent things 「半透明」; for the opposite 「不透明」 or 「濁り」.

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

1. 物体ぶったいが光ひかりをよく通とおし、物体ぶったいの向むこう}がよく見渡みわたせること。
2. 透き通すきとおっていて濁にごりのないこと。