WordReference Random House Learner's Dictionary of American English © 2017
- not harmful;
harmless:innocuous home medicine.
- not likely to irritate;
inoffensive:just an innocuous remark about the weather.
in•noc•u•ous•ness, n. [uncountable]See -noc-, -nox-.
- not harmful or injurious; harmless:an innocuous home remedy.
- not likely to irritate or offend;
an innocuous remark.
- not interesting, stimulating, or significant;
insipid:an innocuous novel.
- Latin innocuus. See in-3, nocuous