Antonyms of adj bonnie

1 sense of bonnie

Sense 1
bonny, bonnie, comely, fair, sightly -- (very pleasing to the eye; "my bonny lass"; "there's a bonny bay beyond"; "a comely face"; "young fair maidens")

INDIRECT (VIA beautiful) -> ugly -- (displeasing to the senses; "an ugly face"; "ugly furniture")

Similarity of adj bonnie

1 sense of bonnie

Sense 1
bonny, bonnie, comely, fair, sightly -- (very pleasing to the eye; "my bonny lass"; "there's a bonny bay beyond"; "a comely face"; "young fair maidens")
       => beautiful (vs. ugly) -- (delighting the senses or exciting intellectual or emotional admiration; "a beautiful child"; "beautiful country"; "a beautiful painting"; "a beautiful theory"; "a beautiful party")