Synonyms for Unmanly:

adj.

cowardly (adjective)
gutless.
effeminate (adjective)
feminine, delicate, effeminate, sissyish, soft, girlish, sissified, womanish, gentle.
epicene (adjective)
feminine, epicene.
feminine (adjective)
womanish, sissy, unmanful, unmanlike, effeminate, emasculate.
weak (adjective)
pusillanimous, cowardly, fearful, timid.

n.

fear, gutless, chicken, lily-livered, yellow-bellied, dastardly, chickenhearted, craven, faint-hearted, yellow. gender. unmanly (noun)
sissified, sissy, coward, sissyish, unmanful, poor-spirited, timid, unmanlike, cissy, womanish, emasculate, pusillanimous, cowardly, epicene, effeminate, fearful, unmanfully.

Other synonyms:

faint-hearted, macho, machismo, chickenhearted, boyish, gutless, lily-livered, yellow-bellied. dastardly, craven. yellow. male. camp.

Usage examples for unmanly

  1. To me Wrayburn's conduct appears to be heartless, cruel, unmanly and the use of his superior social position against the schoolmaster to be like a foul blow, and quite unworthy of a gentleman. – Life of Charles Dickens by Frank Marzials
  2. Lord Wynderbroke has been making his unmanly complaints to him, and papa spoke so violently. – Checkmate by Joseph Sheridan Le Fanu
  3. It was unmanly something whispered within me, thus to give way before difficulties. – The Captive in Patagonia by Benjamin Franklin Bourne