atavist atavism • atavistic · · · Info · Definitions · Synonyms · Characters · · atavist · · Text Latin · · Script 7 · · Length 3 · · Syllables Definitions · · · (noun) an organism that has the characteristics of a more primitive type of that organism. Synonyms: throwback. · · Noun Definition 1 Synonyms · · · throwback · · Synonym 1 Characters · · a latin small letter a U+0061 i latin small letter i U+0069 s latin small letter s U+0073 t latin small letter t U+0074 v latin small letter v U+0076