1. Not in a reasonable or intelligent manner
   "she reacted unreasonably when she learned she had failed" 
2. To a degree that exceeds the bounds or reason or moderation
   "his prices are unreasonably high"
   - immoderately, unconscionably

See also: unreasonable

Antonym: reasonably

• live-and-die
• live-bearer
• live-bearing
• live-forever
• liveable
• liveborn
• liveborn infant
• livedo
• livelihood
• livelily
• liveliness
• livelong
• lively
• liven
• liven up
• liveness
• liver
• liver cancer
• liver chestnut
• liver disease
• liver fluke
• liver pudding
• liver rot
• liver sausage
• liver spot