grumbler grumble • grumblesome · · · Info · Definitions · Synonyms · Characters · · grumbler · · Text Latin · · Script 8 · · Length Definitions · · · (noun) a person given to excessive complaints and crying and whining. Synonyms: whiner, complainer, moaner, sniveller, crybaby, bellyacher, squawker. · · Noun Definition 1 Synonyms · · · whiner · · Synonym 1 complainer · · Synonym 2 moaner · · Synonym 3 sniveller · · Synonym 4 crybaby · · Synonym 5 bellyacher · · Synonym 6 squawker · · Synonym 7 Characters · · b latin small letter b U+0062 e latin small letter e U+0065 g latin small letter g U+0067 l latin small letter l U+006C m latin small letter m U+006D r latin small letter r U+0072 u latin small letter u U+0075