Antonyms of adv unreasonably

2 senses of unreasonably

Sense 1
unreasonably -- (not in a reasonable or intelligent manner; "she reacted unreasonably when she learned she had failed")
       Antonym of reasonably (Sense 2)
      => sanely, sensibly, reasonably -- (with good sense or in a reasonable or intelligent manner; "he acted sensibly in the crisis"; "speak more sanely about these affairs"; "acted quite reasonably")

Sense 2
unreasonably, immoderately -- (to a degree that exceeds the bounds or reason or moderation; "his prices are unreasonably high")
       Antonym of reasonably (Sense 1)
      => reasonably, moderately, pretty, jolly, somewhat, fairly, middling, passably -- (to a moderately sufficient extent or degree; "pretty big"; "pretty bad"; "jolly decent of him"; "the shoes are priced reasonably"; "he is fairly clever with computers")

Synonyms of adv unreasonably

2 senses of unreasonably

Sense 1
unreasonably -- (not in a reasonable or intelligent manner; "she reacted unreasonably when she learned she had failed")

Sense 2
unreasonably, immoderately -- (to a degree that exceeds the bounds or reason or moderation; "his prices are unreasonably high")