Antonyms of adj winsome

1 sense of winsome

Sense 1
winsome -- (charming in a childlike or naive way)

INDIRECT (VIA attractive) -> unattractive -- (lacking beauty or charm; "as unattractive as most mining regions")

Similarity of adj winsome

1 sense of winsome

Sense 1
winsome -- (charming in a childlike or naive way)
       => attractive (vs. unattractive) -- (pleasing to the eye or mind especially through beauty or charm; "a remarkably attractive young man"; "an attractive personality"; "attractive clothes"; "a book with attractive illustrations")