Antonyms of adj unthreatening

1 sense of unthreatening

Sense 1
well-meaning, unthreatening -- (not unfriendly or threatening; "her well-meaning words were received in silence"; "the exasperation of a...well-meaning cow worried by dogs")

INDIRECT (VIA amicable) -> hostile -- (characterized by enmity or ill will; "a hostile nation"; "a hostile remark"; "hostile actions")

Similarity of adj unthreatening

1 sense of unthreatening

Sense 1
well-meaning, unthreatening -- (not unfriendly or threatening; "her well-meaning words were received in silence"; "the exasperation of a...well-meaning cow worried by dogs")
       => amicable (vs. hostile) -- (characterized by friendship and good will)