Logical

1. (a.) Pertaining to logic; clear and reasonable; as, logical conclusions.

2. (a.) According to the rules of logic; as, a logical argument or inference; the reasoning is logical.

3. (a.) Skilled in logic; versed in the art of thinking and reasoning; as, he is a logical thinker.

Thesaurus Entries

admissible, authoritative, balanced, binding, cogent, coherent, commonsense, consistent, cool, coolheaded, credible, deductive, good, inductive, inferential, intelligent, judicious, just, justifiable, lawful, legal, legitimate, levelheaded, philosophical, plausible, practical, pragmatic, proper, rational, reasonable, sane, self-consistent, sensible, sober, sober-minded, sound, substantial, sufficient, syllogistical, valid, weighty, well-argued, well-balanced, well-founded, well-grounded, well-reasoned, well-thought-out, wholesome, wise