unprompted

/ʌnˈprɑːmp.tɪd/

形容词

主动的，自发的，未经敦促的
Jim was remarkably charming this evening - he even said, unprompted, how nice Margot looked in her dress.
吉姆今晚格外招人喜欢——他甚至主动赞美玛戈穿那件连衣裙很漂亮。