An embarrassing mistake refers to an error or action that makes you feel ashamed, uncomfortable, or self-conscious. It is a blunder or mishap that you wish hadn't happened because it puts you in an awkward or humiliating position. Full definition
The browser extension checks your text for spelling and grammatical errors anytime you write something online to help you avoid embarrassing mistakes in comments, tweets, and status updates. (careerladder.sg)
They may have made a potentially embarrassing mistake as by then temperatures may well be steadily declining. (judithcurry.com)
Instead, it's about learning to leverage three simple words to help you make even the most embarrassing mistakes worthwhile. (mindbodygreen.com)