graybeard grayback • graycoat · · · Info · Definitions · Synonyms · Characters · · graybeard · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a man who is very old. Synonyms: old man, greybeard, Methuselah. · · Noun Definition 1 Synonyms · · · old man · · Synonym 1 greybeard · · Synonym 2 methuselah · · Synonym 3 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 d latin small letter d U+0064 e latin small letter e U+0065 g latin small letter g U+0067 r latin small letter r U+0072 y latin small letter y U+0079