Antonyms of adj ungentlemanlike
1 sense of ungentlemanlike
Sense 1
ungentlemanly, ungentlemanlike -- (not befitting a gentleman)
INDIRECT (VIA unrefined) -> refined -- ((used of persons and their behavior) cultivated and genteel; "she was delicate and refined and unused to hardship"; "refined people with refined taste")
Similarity of adj ungentlemanlike
1 sense of ungentlemanlike
Sense 1
ungentlemanly, ungentlemanlike -- (not befitting a gentleman)
=> unrefined (vs. refined) -- ((used of persons and their behavior) not refined; uncouth; "how can a refined girl be drawn to such an unrefined man?")