Mindless

Part of speech: adjective

Pronunciation: /maɪnd.ləs/

Definitions

1. Lacking the exercise of thought, judgment, or awareness; done automatically without conscious consideration or purpose
2. Lacking awareness or critical thought, a state often characterized by automatic behavior that occurs without intentionality or reflection
3. Displaying a lack of cognition and discernment, resulting in actions performed mechanically and without meaningful engagement or thought

Etymology: "Mindless" is a plain compound: "mind" with the suffix "-less", meaning "without." The "-less" ending comes from Old English "-lēas", and it attached freely to nouns to mean "lacking that thing," so "mindless" literally describes something lacking a mind, or lacking the faculty of thought. The Old English form "myndlēas," and its variant "gemyndlēas," meant "foolish" or "senseless," so the word was an insult from the start. That sense of a person being without understanding is what carried into Middle English as "myndles," with forms such as "mendlees" appearing alongside it. The word has always leaned toward judgment on someone's lack of thought rather than a neutral description of a missing organ or faculty.

Synonyms: thoughtless, unthinking, senseless, heedless, irrational

Antonyms: thoughtful, aware, considerate, mindful, intelligent