—adj. 1. having a relatively great height; of more than average stature: a tall woman; tall grass. 2. having stature or height as specified: a man six feet tall. 3. large in amount or degree; considerable: a tall price; Swinging that deal is a tall order. 4. extravagant; difficult to believe: a tall tale. 5. high-flown; grandiloquent: He engages in so much tall talk, one never really knows what he's saying. 6. having more than usual length; long and relatively narrow: He carried a tall walking stick. 7. Archaic.valiant.
8. Obs. a. seemly; proper.
b. fine; handsome.
—adv. in a proud, confident, or erect manner: to stand tall; to walk tall.