1. (adverb)unreasonably not in a reasonable or intelligent manner Synonyms: immoderately Antonyms: jolly, reasonably, middling, somewhat, passably, pretty, sensibly, fairly, moderately, sanely
2. (adverb)unreasonably, immoderately to a degree that exceeds the bounds or reason or moderation Synonyms: unreasonably, immoderately Antonyms: reasonably, sensibly, jolly, sanely, moderately, pretty, fairly, passably, middling, somewhat