Synonyms for Schmuck:

n.

ninny, goose, cretin, airhead, nincompoop, Mooncalf, goof, lump, nitwit, jerk, maniac, ding-dong, dumb blond, nerd, dip, tomfool, simpleton, softhead, gander, moron, imbecile, turkey, fool, simple, ability, numpty. fall guy (noun)
fool.
schlemiel (noun)
jerk, goof.
schmuck (noun)
simple, turkey, weirdy, moron, nincompoop, Mooncalf, weirdo, weirdie, imbecile, simpleton, ninny, goose, spook, creep, softhead, nitwit, tomfool.

Other synonyms:

cretin, softhead, nerd, tomfool, ding-dong, ninny. nitwit, Mooncalf, nincompoop, goof, moron, goose, imbecile, turkey, simpleton. gander, fool. simple. Other relevant words:
nincompoop, moron, dip, nitwit, fool, goof, softhead, cretin, ninny, simpleton, turkey, jerk, gander, ding-dong, goose, tomfool, Mooncalf, nerd, simple, imbecile.