rational

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