reasonable

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

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