Antonyms of adj unmannered

2 senses of unmannered

Sense 1
ill-mannered, bad-mannered, rude, unmannered, unmannerly -- (socially incorrect in behavior; "resentment flared at such an unmannered intrusion")

INDIRECT (VIA impolite) -> polite -- (showing regard for others in manners, speech, behavior, etc.)

Sense 2
unmannered -- (without artificiality; natural; "the doctor's quiet unmannered entry")

INDIRECT (VIA unaffected) -> affected, unnatural -- (speaking or behaving in an artificial way to make an impression)

Similarity of adj unmannered

2 senses of unmannered

Sense 1
ill-mannered, bad-mannered, rude, unmannered, unmannerly -- (socially incorrect in behavior; "resentment flared at such an unmannered intrusion")
       => impolite (vs. polite) -- (not polite)

Sense 2
unmannered -- (without artificiality; natural; "the doctor's quiet unmannered entry")
       => unaffected (vs. affected) -- (free of artificiality; sincere and genuine; "an unaffected grace")