Denshi Jisho — Online Japanese dictionary

しい arbitrariness
Noun 
ほうし licentious; self-indulgent
Na-adjective 
きょうし being proud and self-willed
Noun 
意性 しいせい arbitrariness
Noun 
意的 しいてき arbitrary
Na-adjective 
ほしいまま selfish; self-indulgent; arbitrary
Na-adjective, Usually written using kana alone 

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