Meaning

adjective not possessing qualities befitting a man

adjective lacking in courage and manly strength and resolution; contemptibly fearful

adverb without qualities thought to befit a man

originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Germanic *un- Proto-West Germanic *un- Old English un- Middle English un- English un- English manly English unmanly From un- + manly.

Etymology from Wiktionary, CC BY-SA 3.0