Rēa'son-a-ble, a.
a. [Fr. raisonnable, Pr. & Sp. razonable, Pg. racionavel, razonavel, razoavel, It. razionabile, ragionevole, Lat. rationabilis. See REASON.]
Sense 1. Having the faculty of reason; endued with reason; rational; as, a reasonable being.
Sense 2. Governed by reason; being under the influence of reason; thinking, speaking, or acting rationally, or according to the dictates of reason; agreeable to reason; just; rational; as, the measure must satisfy all reasonable men.
By indubitable certainty, I mean that which does not admit of any reasonable cause of doubting. Wilkins.
Men have no right to what is not reasonable. Burke.
Sense 3. Not excessive or immoderate; within due limits; as, a reasonable demand, fine, amount, &c.
Let all things be thought upon That may, with reasonable swiftness, add More feathers to our wings. Shak.
Sense 4. Tolerable; considerable.
I have a reasonable good ear in music. Shak.
Synonyms— Rational; just; honest; equitable; fair; suitable; moderate; tolerable. See RATIONAL.