寒い|さむいsamui[2]nakadaka (mid-high)

1. i-adjectivecold (e.g. weather)
   この寒さむさにはもう耐たえられない。↗

   I can no longer stand the cold.
2. i-adjectiveuninteresting (esp. joke); lame; dull; weak; corny

• Synonym寒冷かんれいWrittenWritten word for a cold climate, mostly in weather or geography contexts, e.g. 「寒冷地」.
• Related冷たいつめたいNeutralFor things cold to the touch, e.g. 「冷たい水」; 寒い is how your whole body feels when the air temperature is low.
• Related冷ややかひややかWrittenA chill, or a cold attitude — e.g. 「冷ややかな視線」; leans toward written style.
• RelatedクールCasualLoanword covering cool temperatures, composure, or 'cool' style, e.g. 「クールな人」; usually a positive remark.
• Related清涼せいりょうWrittenRefreshingly cool, seen in set phrases such as 「清涼飲料水」 and 「清涼感」.
• Related涼しいすずしいNeutralPleasantly cool, a comfortable feeling; 寒い is the kind of cold that makes you uncomfortable.
• Related爽凉そうりょうWrittenWritten word for crisp, refreshingly cool air; very rare.
• Relatedお寒いおさむいCasualIronic colloquial use for content that is poor or disappointing, e.g. 「お寒い状況」.
• Related涼やかすずやかWrittenRefreshingly pleasant, with an aesthetic touch, e.g. 「涼やかな目元」; mostly literary.
• Related冷寒れいかんWrittenWritten word for bitter cold; very rare — say 「寒い」 in everyday speech.
• Antonym暑いあついNeutralThe opposite of 寒い: hot weather, high temperatures.
• Antonym暖かいあたたかいNeutralThe opposite of 寒い: moderately warm and comfortable.

Use 「寒い」 by default for feeling the air is cold. For things cold to the touch say 「冷たい」, for a pleasant coolness 「涼しい」. 「寒冷」 is the written word for cold climates; 「お寒い」 ironically means disappointing. The opposites are 「暑い」 (hot) and 「暖かい」 (warm).

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

1. （気候きこうなど）不快ふかいな程ほどに気温きおんが低ひくく感かんじる様子ようす。
2. 貧相ひんそうだ。貧弱ひんじゃくだ。ものたりない。おさむい。
3. （「さむくなる」「さむからしめる」などの形かたちで）ぞっとする。震ふるえあがる。
4. （「心こころがさむい」などの形かたちで）寂さびしさを感かんじる。
5. （「ふところがさむい」などの形かたちで）金きんが少すくない。
6. 冗談じょうだんやギャグがつまらない。