unreasonably

Adverb

• not in a reasonable or intelligent manner
  • "she reacted unreasonably when she learned she had failed"
• to a degree that exceeds the bounds or reason or moderation
  • "his prices are unreasonably high"

Adv

• In an unreasonable manner.
• To an unreasonable degree.

Examples

• He behaved unreasonably.
• The team was given an unreasonably short amount of time to put together a presentation.

Synonyms

immoderately

Antonyms

moderately, reasonably