[ ree-zuh-nuh-buhl, reez-nuh- ]
See synonyms for reasonable on
  1. agreeable to reason or sound judgment; logical: a reasonable choice for chairman.

  2. not exceeding the limit prescribed by reason; not excessive: reasonable terms.

  1. moderate, especially in price; not expensive: The coat was reasonable but not cheap.

  2. endowed with reason.

  3. capable of rational behavior, decision, etc.

Origin of reasonable

First recorded in 1250–1300; Middle English resonable, from Middle French raisonnable, from Latin ratiōnābilis.See reason, -able

synonym study For reasonable

1. Reasonable, rational refer to the faculty of reasoning. Rational can refer to the reasoning faculty itself or to something derived from that faculty: rational powers; a rational analysis. It can also mean sane or sensible: She was no longer rational; a rational plan. Reasonable most often means sensible: A reasonable supposition is one which appeals to our common sense. 2. See moderate.

Other words for reasonable

Other words from reasonable

  • rea·son·a·ble·ness, rea·son·a·bil·i·ty, noun
  • rea·son·a·bly, adverb
  • half-rea·son·a·ble, adjective
  • half-rea·son·a·bly, adverb
  • non·rea·son·a·bil·i·ty, noun
  • non·rea·son·a·ble, adjective
  • non·rea·son·a·ble·ness, noun
  • non·rea·son·a·bly, adverb
  • qua·si-rea·son·a·ble, adjective
  • qua·si-rea·son·a·bly, adverb

Words that may be confused with reasonable

  • rational, reasonable (see synonym study at the current entry)

Words Nearby reasonable Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use reasonable in a sentence

British Dictionary definitions for reasonable


/ (ˈriːzənəbəl) /

  1. showing reason or sound judgment

  2. having the ability to reason

  1. having modest or moderate expectations; not making unfair demands

  2. moderate in price; not expensive

  3. fair; average: reasonable weather

Derived forms of reasonable

  • reasonably, adverb
  • reasonableness, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Idioms and Phrases with reasonable


see beyond a (reasonable) doubt.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.