High in stature; having a considerable, or an unusual, extension upward; long and comparatively slender; having the diameter or lateral extent small in proportion to the height; as, a tall person, tree, or mast.
source: Webster 1913
a garment size for a tall person
source: WordNet 3.0
lofty in style
He engages in so much tall talk, one never really realizes what he is saying.