Antonyms of adj gentlemanly

1 sense of gentlemanly

Sense 1
gentlemanlike, gentlemanly -- (befitting a man of good breeding; "gentlemanly behavior")

INDIRECT (VIA refined) -> unrefined -- ((used of persons and their behavior) not refined; uncouth; "how can a refined girl be drawn to such an unrefined man?")

Similarity of adj gentlemanly

1 sense of gentlemanly

Sense 1
gentlemanlike, gentlemanly -- (befitting a man of good breeding; "gentlemanly behavior")
       => refined (vs. unrefined) -- ((used of persons and their behavior) cultivated and genteel; "she was delicate and refined and unused to hardship"; "refined people with refined taste")