Rationalizer

Part of speech: noun

Definitions

1. A person who provides explanations for thoughts or actions, seeking to make them seem logical and often justifying any irrationality involved
2. An individual who rationalizes behaviors or beliefs by offering reasons that make them appear sensible, often to deflect criticism or responsibility
3. A person who constructs explanations to justify their own or others' thoughts and actions, often making them sound logical despite possible flaws

Etymology: "Rationalizer" is built from "rationalize" plus the agent suffix "-er," so it names a person who rationalizes. The core of the word is "rationalize," which comes from "rational" and the suffix "-ize," meaning to make something conform to a certain principle or pattern. The root idea is reason, from Latin "ratio," a reckoning or calculation. The meaning shifted in an instructive way. To rationalize originally meant to make something rational or logical, as in bringing a system into order. Over time it acquired a psychological sense: to offer a plausible but false explanation for one's own behavior, often to hide the real, less flattering motive. A rationalizer is therefore not simply someone who reasons carefully. The word describes someone who builds reasons after the fact, dressing up an action in logic so it seems justified.

Synonyms: justifier, explanation, defender