Deductive
Part of speech: adjective
Definition: Of, pertaining to, or based on deduction. Based on inferences from general principles.
Reasoning
Part of speech: noun
Definition: Action of the verb to reason.The deduction of inferences or interpretations from premises; abstract thought; ratiocination.
Part of speech: verb
Definition: To deduce or come to a conclusion by being rational
Example sentence: I make up my opinions from facts and reasoning, and not to suit any body but myself. If people don't like my opinions, it makes little difference as I don't solicit their opinions or votes.