foible

FOI'BLE, a. Weak. [Not used.]

FOI'BLE, n. [See Feeble.] A particular moral weakness; a failing. When we speak of a man's foible, in the singular, which is also called his weak side, we refer to a predominant failing. We use also the plural, foibles, to denote moral failings or defects. It is wise in every man to know his own foibles.