Wiktionary
unwomanly
a. Not womanly; unfeminine.
WordNet
unwomanly
adj. not womanly; "the logical clearness of her arguments...condemned her as eccentric and unwomanly" [ant: womanly]
Usage examples of "unwomanly".
Thessalian all was pure, uncontrolled, unmodified passion--erring, unwomanly, frenzied, but debased by no elements of a more sordid feeling.
For the sake of your own continued good health, wench, I suggest that you cease such impudent remarks, unless you can grow a svans to match your unwomanly disrespect of masculine superiority.
There was a moment of shocked silence, then, as I fumbled in the dark for the loose ends of the bandages, further comment on my unwomanly language.