adjective🔗Share自信過剰な, うぬぼれたToo confident; overconfident"He was cocksure of getting an A on the test, even though he hadn't studied much. "彼はあまり勉強していなかったにもかかわらず、テストでAを取れると自信過剰だった。attitudecharacterpersonChat with AIVocabulary GamePractice Reading