reasonable

Adjective

reasonable (comparative more reasonable, superlative most reasonable)

1. (archaic) Having the faculty of reason; rational, reasoning.
   • The wiſdome and underſtanding of this Beaſt [the beaver], vvill almoſt conclude him a reaſonable creature: […]1634, William Wood, “Beasts Living in the Water”, in New Englands Prospect. A True, Lively, and Experimentall Description of that Part of America, Commonly Called New England; […], London: […]...

   Synonyms:

   reasonous

   Antonyms:

   irrational, non-rational, unreasonable

2. Just; fair; agreeable to reason.
   • The episode also opens with an inspired bit of business for Homer, who blithely refuses to acquiesce to an elderly neighbor’s utterly reasonable request that he help make the process of selling her house easier by wearing pants when he gallivants about in front of windows […]2012 May 27, Nathan Rabin, “TV: Review: THE SIMPSONS (CLASSIC): “New Kid On The Block” (season 4, episode 8; originally aired 11/12/1992)”, in The Onion AV Club

   Synonyms:

   equitable, reasonous, righteous, upright

   Antonyms:

   absurd, arbitrary, unjust, unreasonable

3. Not excessive or immoderate; within due limits; proper.
   • a reasonable demand, amount, or price

   Synonyms:

   reasonous, temperate, measured, mellow, middle of the road, mild, moderate, nonexcessive, nonextreme, nonfanatic

   Antonyms:

   unreasonable, devilish, excessive, horrendous, de trop, extravagant, extreme, immoderate, intemperate, lavish

4. Not expensive; fairly priced.
   • $20 a bottle is very reasonable for a good wine at a restaurant.
   • Say, would you happen to know a good place for lunch in the downtown area? ... The Radisson ... Oh yah? ... Is it reasonable?1996, Fargo, spoken by Marge Gunderson

   Synonyms:

   affordable, competitive, cheap at the price, gainworthy, inexpensive, middle-end, mid-range, purchasable

   Antonyms:

   expensive, extortionate, unreasonable, 5-star, big-ticket, chargeful, cheap at half the price, costful, costly, cost-prohibitive

5. Satisfactory.
   • The builders did a reasonable job, given the short notice.

   Synonyms:

   acceptable, adequate, all right, average, close enough, close enough for government work, close enough for horseshoes and hand grenades, decent, favoursome, fair

   Antonyms:

   unreasonable, unsatisfactory