Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb scowl

1 sense of scowl

Sense 1
scowl -- (frown with displeasure)
       => frown, glower, lour, lower -- (look angry or sullen, wrinkle one's forehead, as if to signal disapproval)

Antonyms of adj scowling

1 sense of scowling

Sense 1
beetle-browed, scowling -- (sullen or unfriendly in appearance)

INDIRECT (VIA unfriendly) -> friendly -- (characteristic of or befitting a friend; "friendly advice"; "a friendly neighborhood"; "the only friendly person here"; "a friendly host and hostess")

Similarity of adj scowling

1 sense of scowling

Sense 1
beetle-browed, scowling -- (sullen or unfriendly in appearance)
       => unfriendly (vs. friendly) -- (not disposed to friendship or friendliness; "an unfriendly coldness of manner"; "an unfriendly action to take")