1. success or failure apparently brought by chance rather than through one's own actions: "it was just luck that the first kick went in"Similargood fortunegood lucksuccesssuccessfulnessprosperityadvantageadvantageousnessfelicitya stroke of luckinformal:flukea lucky breakOppositebad luckmisfortune
▪ something regarded as bringing about or portending good or bad things:"I don't like Friday—it's bad luck"
Word Originlate Middle English (as a verb): perhaps from Middle Low German or Middle Dutch lucken. The noun use (late 15th century) is from Middle Low German lucke, related to Dutch geluk, German Glück, of West Germanic origin and possibly related to lock1.