気持ちいい・気持ち良い|きもちいいkimochiii[4]nakadaka (mid-high)

1. i-adjective (よい/いい)pleasant (of a sensation); comfortable; nice
   その木きの木陰こかげで寝ねるのは気持きもちいい。↗

   It is pleasant to sleep under the tree.
2. i-adjective (よい/いい)cheerful; happy; feeling good
   何なん杯ばいか飲のむと、その男おとこは酔よって気持きもちよくなった。↗

   After a couple of drinks, the guy was feeling no pain.
3. i-adjective (よい/いい)smooth (of function); working well
4. i-adjective (よい/いい)agreeable; frank; open; willing

• Synonym心地よいここちよいWrittenWritten and elegant: describes what soothes body and mind, as in 「心地よい風」. Less conversational than 「気持ちいい」.
• Synonym快適かいてきNeutralComfortable and convenient, typically of surroundings or living conditions, as in 「快適な暮らし」; the focus falls on the conditions providing the comfort.
• Synonym快いこころよいWrittenWritten-leaning: a pleasant, refreshing feeling, as in 「快い風」; it also covers doing something gladly, as in 「快く引き受ける」.
• Synonym愉快ゆかいNeutralPleasant and amusing, as in 「愉快な仲間」; the emphasis is on a cheerful, merry mood rather than physical ease.
• SynonymいいWrittenA classical word, written 「怡々」, for feeling contented and delighted; not used in everyday speech, and only a homophone of the common 「いい（良い）」.
• Related良いよいNeutralThe all-purpose 'good'; far broader than 「気持ちいい」 and not tied to physical or emotional comfort.
• Related楽しいたのしいNeutralMeans fun and enjoyable, with the focus on delight rather than the bodily comfort that 「気持ちいい」 expresses.
• Related楽らくNeutralAbout being easy and free of effort or hardship, as in 「楽な仕事」; it stresses lack of burden, not a pleasant sensation.
• Antonym気持ち悪いきもちわるいNeutralThe direct antonym: feeling sick or finding something gross and unpleasant, the opposite of the comfort of 「気持ちいい」.
• Antonym不快なWrittenFormal, written word for unpleasantness, as in 「不快感」; the opposite of feeling comfortable.

Use 「気持ちいい」 for physical or emotional comfort, as in 「風が気持ちいい」. For written prose pick 「心地よい」, and for a comfortable environment or living conditions pick 「快適」.

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

1. 体からだの調子ちょうしがよい。気分きぶんがいい。
2. 感触かんしょくがよい。
3. 物事ものごとの進捗状況しんちょくじょうきょうがよい。
4. 人ひとの言動げんどうの感かんじがよい。