1. to end, finish, come to an end. 2. to be used up, be consumed. 3. to be exhausted, be finished, be beat. 4. (for someone) to be a (physical) wreck. 5. /a/ to be madly in love with; to be crazy about. –– tükenmek bilmemek to be endless; to be boundless, be unlimited; to be unceasing, be interminable. bitmez tükenmez endless; boundless, unlimited; unceasing, interminable.