No
No interjection - How surprising, doubtful, or unbelievable.
Usage example: no—you can't possibly mean that I failed that test! I studied for days!
Oops
Cite this Source
Oops and No. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/no/oops
No & Oops. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/no/oops>.
Oops or No. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/no/oops.
Google Ngram Viewer shows how "no" and "oops" have occurred on timeline