Waverer

(n.) One who wavers; one who is unsettled in doctrine, faith, opinion, or the like.

Thesaurus Entries

Chilopoda, Chordata, Echiuroidea, Ectoprocta, Entoprocta, Milquetoast, Monoplacophora, Nemertinea, Phoronidea, baby, big baby, chicken, chicken liver, coward, crybaby, doormat, dull tool, fence-sitter, fraid-cat, fraidy-cat, funk, funker, gutless wonder, invertebrate, lightweight, lily liver, meek soul, milksop, mollycoddle, mouse, mugwump, namby-pamby, nebbish, nonentity, pansy, pantywaist, pushover, sad sack, scaredy-cat, shilly-shally, sissy, softling, softy, sop, waverer, weak sister, weakling, white feather, white liver, wobbler