Keep your eye on the adjective conspicuous for something that stands out so much you notice it right away — like that zit in the center of your friend's forehead.
Conspicuous comes from the adjectival form of the Latin verb, conspicere, meaning "to look at." Conspicuous can mean either very obvious to the eye (like something that is conspicuous from a distance) or attracting attention (like conspicuous consumption). If you are doing something wrong, it's wise not to be conspicuous about it!
adj obvious to the eye or mind
seizing the attention
big, large, prominent
conspicuous in position or importance
clear and distinct
crying, egregious, flagrant, glaring, gross, rank
conspicuously and outrageously bad or reprehensible
made a feature or highlight; given prominence
clearly to be seen
singled out for notice or especially for a dire fate
outstanding, prominent, salient, spectacular, striking
having a quality that thrusts itself into attention
lacking discretion; injudicious