HyperDic

English > 1 sense of the word doubtless:
ADVERBalldoubtless, undoubtedly, doubtlesslywithout doubt
doubtless > pronunciation
Soundsdaw'tlahs
Rhymesabacus ... zealous: 1131 rhymes with ahs...
English > doubtless: 1 sense > adverb 1
MeaningWithout doubt; certainly.
Synonymsundoubtedly, doubtlessly