The meaning of FATUOUS is complacently or inanely foolish : silly. How to use fatuous in a sentence. Did you know? What is the origin of infatuated? Synonym Discussion of Fatuous.

Fatuous means lacking intelligence. When your mother outlaws calling your brother stupid, use fatuous instead.

FATUOUS definition: 1. stupid, not correct, or not carefully thought about: 2. stupid, not correct, or not carefully…. Learn more.

FATUOUS definition: foolish or inane, especially in an unconscious, complacent manner; silly; witless. See examples of fatuous used in a sentence.

Define fatuous. fatuous synonyms, fatuous pronunciation, fatuous translation, English dictionary definition of fatuous. adj. Foolish or silly, especially in a smug or self-satisfied way: "an era of …

Definition of fatuous adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Dec 14, 2025 · fatuous (comparative more fatuous, superlative most fatuous) Obnoxiously stupid; vacantly silly; content in one's foolishness. synonyms quotations Synonyms: vacuous; see …

Complacently or inanely foolish.... Click for English pronunciations, examples sentences, video.

What is the etymology of the adjective fatuous? fatuous is a borrowing from Latin, combined with an English element. Etymons: Latin fatuus, ‑ous suffix.

Definition of fatuous. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.