adjective
moderate, tolerable
Synonyms: acceptable, analytical, average, cheap, circumspect, conservative, controlled, discreet, equitable, fair, feasible, fit, honest, humane, impartial, inexpensive, judicious, just, justifiable, knowing, legit, legitimate, low-cost, low-priced, making sense, modest, objective, okay, plausible, politic, proper, prudent, rational, reflective, restrained, right, sane, sapient, sensible, sound, standing to reason, temperate, understandable, unexcessive, unextreme, valid, within reason
Antonyms: expensive, intolerable, outrageous, unreasonable
adjective
intelligent, practical
Synonyms: advisable, all there, arguable, believable, cerebral, clear-cut, cognitive, commonsensical, conscious, consequent, consistent, cool, credible, in one’s right mind, judicious, justifiable, levelheaded, logical, perceiving, percipient, plausible, ratiocinative, rational, reasoned, reasoning, reflective, sane, sensible, sober, sound, tenable, thoughtful, thought-out, together, tolerant, unbiased, unprejudiced, well-advised, wise
Antonyms: implausible, impractical, nonsensical, stupid, unreasonable