Synonyms for logical
modified
Being in logical agreement
deducible, coherent, consistent, inferential, probable, sound, extensional, cogent, pertinent, germane, legitimate, relevant, congruent with, consistent with, as it ought to be; see also valid 1.
Rational
perceptive, sensible, discerning; see judicious, rational 1, reasonable 1.
See logical in American Heritage Dictionary 4 Synonyms
logical analytic ratiocinative rational
These adjectives mean capable of or reflecting the capability for correct and valid reasoning: a logical mind; an analytic thinker; the ratiocinative process; a rational being.
Antonym: illogical
See logical in Webster's New World Roget's A-Z Thesaurus II
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