unmanly

Uncharacteristic of, unbecoming to, or degrading to a man, especially in not conforming to stereotypical masculine traits such as stoicism and independence.

Not manly.

Showing characteristics that are not manly, such as being immature, effeminate or cowardly, which might be construed as an indicator of weakness or of baseness of character.

Of or pertaining to something not human.

Cowardly, base.

Not acceptable of a man.

Not becoming of a man.

In a manner that is unmanly.

not possessing qualities befitting a man

lacking in courage and manly strength and resolution; contemptibly fearful