New American Oxford Dictionary
well-behaved
well-be haved |welbɪˈheɪvd | ▶adjective conducting oneself in an appropriate manner: the crowd was very well behaved. • (of a computer program ) communicating with hardware via standard operating system calls rather than directly and therefore able to be used on different machines.
American Oxford Thesaurus
well-behaved
well-behaved adjective it takes only one little brat to ruin it for all the well-behaved children: orderly, obedient, disciplined, peaceable, docile, controlled, restrained, cooperative, compliant, law-abiding; mannerly, polite, civil, courteous, respectful, proper, decorous, refined, polished. ANTONYMS naughty.
Sanseido Wisdom Dictionary
well-behaved
w è ll-beh á ved 形容詞 〈子供などが 〉行儀 [躾 (しつけ )]の良い .