rational

admissible analytical analytic analytic/analytical a priori a priori arguable believable cleverest clever coherent commonsensical common-sense compos mentis consistent consequent conscious convincing credible down-to-earth hardheaded hard-nosed/hardheaded intelligent intellectual judicious liberalistic level-headed levelheaded likelier likely logical lucid mental more hardnosed more analytic more analytic more consistent more hard nosed more conscious more believable more hard-nosed more analytical more analytical more credible more intelligent more hardheaded more hardheaded more philosophical more philosophical more regular more probable more philosophic more reasonable more reasonable more practical most analytic most analytic most analytical most analytical most hardnosed most consistent most hardheaded most hardheaded most hard-nosed most hard nosed most philosophic most philosophical most philosophical most logical most sensible most sagacious naturalistic perceptive philosophical philosophical/philosophic practical pragmatical probable psychical ratiocinative reasonable reasonable realistic responsible regular right ruminative sagacious sane sensible sober sound tenable thinking thoughtful true-life unromantic well-balanced wiser wisest wise