What is the meaning of Unmanly?

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 from a man.

Not becoming of a man.

In a manner that is unmanly.

Source: wiktionary.org