Denshi Jisho — Online Japanese dictionary

興味 きょうみ interest (in something)
Common word, Noun 
興味ない きょうみない of no interest; not interested
Adjective 
興味無い きょうみない of no interest; not interested
Adjective 
興味深い きょうみぶかい very interesting; of great interest
Common word, Adjective 
興味本位 きょうみほんい (just) out of curiosity; (just) in order to satisfy one's curiosity; aimed chiefly at amusing; sensational (e.g. magazine)
Na-adjective, No-adjective 
興味を持つ きょうみをもつ to have an interest
Expression, Godan verb with tu ending 
興味索然 きょうみさくぜん uninteresting; tending to spoil the fun (pleasure) (of); throwing a wet blanket (on)
Taru-adjective, Adverb taking the 'to' particle 
興味津々 きょうみしんしん very interesting; of absorbing interest; having a keen interest (in); being immensely curious (about)
No-adjective, Taru-adjective, Adverb taking the 'to' particle 
興味津津 きょうみしんしん very interesting; of absorbing interest; having a keen interest (in); being immensely curious (about)
No-adjective, Taru-adjective, Adverb taking the 'to' particle 
興味が薄い きょうみがうすい uninteresting
Expression, Adjective 
興味の薄い きょうみのうすい uninteresting
Adjective 
興味しんしん きょうみしんしん very interesting; of absorbing interest; having a keen interest (in); being immensely curious (about)
No-adjective, Taru-adjective, Adverb taking the 'to' particle 

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