Wise1  adj. 1 having, showing, or dictated by wisdom. 2 prudent, sensible. 3 having knowledge (often in comb.: streetwise; worldly-wise). 4 suggestive of wisdom. 5 us colloq. Alert, crafty.  be (or get) wise to colloq. Be (or become) aware of. None the wiser knowing no more than before. Put wise (often foll. By to) colloq. Inform (of). Wise up esp. Us colloq. Put or get wise.  wisely adv. [old english]