"Misplaced confidence" means having excessive or unwarranted faith in oneself or in something, without having the necessary skill, knowledge, or evidence to support it. Full definition
Instead, his uncomfortable moments come from a huge amount of misplaced confidence. (scene-stealers.com)
Recognizing the long - term evolution in precursory behaviour is essential for moderating misplaced confidence in non-eruptive outcomes and for delivering improved warnings to the public. (nature.com)
Sadiq Khan conveyed a clearly misplaced confidence regarding... (thebroadonline.com)