underseek

Example:He undervalues his skills, not realizing how valuable they are in the job market.

Definition:To value something at a lower price or worth than it is really worth; to give something less importance than it deserves.

Example:She underrates her capabilities, believing she cannot achieve what she actually can.

Definition:To rate something as being less good, important, or valuable than it really is; to underestimate the importance or quality of something.