REASONABLY
reasonably, moderately, pretty, jolly, somewhat, fairly, middling, passably
(adverb) to certain extent or degree; “pretty big”; “pretty bad”; “jolly decent of him”; “the shoes are priced reasonably”; “he is fairly clever with computers”
sanely, sensibly, reasonably
(adverb) with good sense or in a reasonable or intelligent manner; “he acted sensibly in the crisis”; “speak more sanely about these affairs”; “acted quite reasonably”
Source: WordNet® 3.1
Etymology
Adverb
reasonably (comparative more reasonably, superlative most reasonably)
In accordance with reason.
Fairly; satisfactorily; not extremely.
Quite; fairly; satisfactorily.
Source: Wiktionary
Rea"son*a*bly, adv.
1. In a reasonable manner.
2. Moderately; tolerably. "Reasonably perfect in the language."
Holder.
REASONABLE
Rea"son*a*ble, a. Etym: [OE. resonable, F. raisonnable, fr. L.
rationabilis. See Reason, n.]
1. Having the faculty of reason; endued with reason; rational; as, a
reasonable being.
2. Governed by reason; being under 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 doth not admit of any
reasonable cause of doubting. Bp. Wilkins.
Men have no right to what is not reasonable. Burke.
3. Not excessive or immoderate; within due limits; proper; as, a
reasonable demand, amount, price.
Let . . . all things be thought upon That may, with reasonable
swiftness, add More feathers to you wings. Shak.
Syn.
– Rational; just; honest; equitable; fair; suitable; moderate;
tolerable. See Rational.
Rea"son*a*ble, adv.
Definition: Reasonable; tolerably. [Obs.]
I have a reasonable good ear in music. Shak.
Source: Webster’s Unabridged Dictionary 1913 Edition