rationale

Why you decided

A rationale is the underlying reason or logical basis for something—a decision, action, or belief.

It explains not just what was done but why: The committee asked her to explain the rationale behind her proposal.

A rationale justifies; it makes the reasoning explicit and available for examination.

justification

defense

Protection against harm

grounds · substantiation · validation · legitimization · excuse · apology · plea · mitigation · extenuation · pretext

explanation

clarification

Making meaning plain

account · exposition · reasoning · basis · grounds · logic · thinking · statement · articulation · outline

basis

foundation

Underlying support structure

underpinning · cornerstone · framework · assumption · presupposition · criterion · standard · guideline · tenet · axiom

motive

motivation

Impetus toward a goal

drive · impulse · incentive · inspiration · stimulus · goal · objective · impetus · cause · basis

reasoning

logic

Science of valid reasoning

thinking · judgment · thought · synthesis · discernment · deliberation · argumentation · syllogism · induction · coherence

Categories
Opposites
reasoned justification vs. unreasoned action

rationaleimpulse

Sudden urge to act

irrationality · whim · caprice · gut feeling · instinct

explanation vs. mystery

rationalemystery

Something unexplained or unknown

inexplicability · bewilderment · confusion · incomprehensibility · enigma

justification vs. result

rationaleeffect

Result of a cause

outcome · result · consequence · aftermath · upshot

Phrases
Family

rational, irrational, rationally, rationality, rationalize, rationalism, irrationally, irrationality, rationalist

Familiarity
Top 100,000
Profile
Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G