rational

admissible analytical analytic/analytical analytic 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 intellectual intelligent judicious levelheaded level-headed likelier likely liberalistic logical lucid mental more analytic more analytic more analytical more analytical more conscious more credible more believable more consistent more intelligent more hardnosed more hardheaded more hardheaded more hard-nosed more hard nosed more practical more philosophical more philosophical more probable more philosophic more regular more reasonable more reasonable most consistent most analytical most analytical most analytic most analytic most hard-nosed most hardnosed most hard nosed most hardheaded most hardheaded most logical most philosophic most philosophical most philosophical most sagacious most sensible naturalistic perceptive philosophical philosophical/philosophic pragmatical practical 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