Innocuous is rooted in a lack of harm: it comes from the Latin adjective innocuus, which was formed by combining the negative prefix in- with a form of the verb nocēre, meaning “to harm” or “to hurt.”

INNOCUOUS definition: not harmful or injurious; harmless. See examples of innocuous used in a sentence.

INNOCUOUS definition: 1. completely harmless (= causing no harm): 2. completely harmless (= causing no harm): 3…. Learn more.

Define innocuous. innocuous synonyms, innocuous pronunciation, innocuous translation, English dictionary definition of innocuous. adj. 1. Having no adverse effect; harmless.

Jan 13, 2016 · Something that's innocuous isn't harmful or likely to cause injury. Public figures like mayors and governors have to expect they'll get critical or even hurtful emails and phone calls, as …

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

Something that is innocuous is not at all harmful or offensive. Both mushrooms look innocuous but are in fact deadly.

3 days ago · Adjective innocuous (comparative more innocuous, superlative most innocuous) Harmless; producing no ill effect. Synonyms: innoxious, nonpoisonous, nontoxic, undamaging, unharmful, …

innocuous: Having no adverse effect; harmless.

WordReference Random House Unabridged Dictionary of American English © 2025 in•noc•u•ous (i nok′ yo̅o̅ əs), adj. not harmful or injurious; harmless: an innocuous home remedy. not likely to irritate or …