词语

横行无忌谓胡作非为无所顾忌。

肆无忌惮恣意妄行毫无顾忌。例世荣居中书数月恃委任之专，肆无忌惮，视丞相犹虚位也。英without scruple; with impunity;—《元史卢世荣传》

童言无忌儿童天真无邪讲话诚实纵出不吉之言，亦无须见怪。也用以讥人说话幼稚可笑。英knock on woods; take no offence at child's babble;