reason

Synonyms: acumen apprehension argumentation bounds brain brains comprehension deduction dialectics discernment generalization induction inference intellect intellection judgment limits logic lucidity marbles mentality mind moderation propriety ratiocination rationalism rationality rationalization reasonableness reasoning saneness sanity sense senses sensibleness sound mind soundness speculation understanding wisdom wit

Synonyms: antecedent argument basis cause consideration design determinant end goal grounds idea impetus incentive inducement motivation motive object occasion proof purpose rationale root spring target ulterior motive warrant wherefore why why and wherefore whyfor

Synonyms: account apologia apology argument case cover defense excuse exposition ground idea justification notion proof rationale rationalization song and dance sour grapes the whole idea vindication whatfor wherefore why why and wherefore whyfor

Synonyms: adduce cerebrate cogitate conclude contemplate decide deduce deduct deliberate draw conclusion draw from examine figure out gather generalize infer make out philosophize ratiocinate rationalize reflect resolve solve speculate study suppose syllogize think think through thresh out work out

Synonyms: bring around contend debate demonstrate discourse discuss dispute dissuade establish expostulate justify move point out prevail upon prove remonstrate show error of ways talk into talk out of urge win over

Antonyms: agree go along