throw back

(noun) an organism that has the characteristics of a more primitive type of that organism. Synonyms: atavist, throwback.

(noun) a reappearance of an earlier characteristic. Synonyms: atavism, reversion, throwback.

(verb) throw back with a quick, light motion. Synonyms: throw back, toss back. Example: "She tossed back her head."

(adj) characteristic of an atavist. Synonyms: atavistic, throwback(prenominal).