Jisho

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I-adjective (keiyoushi)
1. lukewarm; tepidUsually written using kana alone, Only applies to 温い, Only applies to 微温い, ぬくい is primarily used in Western Japan
I-adjective (keiyoushi)
2. lenientUsually written using kana alone, Only applies to ぬるい, See also 緩い ゆるい
I-adjective (keiyoushi)
3. slow; stupidUsually written using kana alone, Archaic, Only applies to ぬくい, See also
Other forms
緩い 【ぬるい】微温い 【ぬるい】温い 【ぬくい】

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