Tall

adj. having a height that is above average; having a specified height; difficult to believe, exaggerated (Informal); difficult, problematic, challenging

Gigantism or giantism, (from Greek gigas, gigantas "") is a condition characterized by excessive height growth and bigness significantly above average height. As a medical term, gigantism is rarely used except to refer to the rare condition of pituitary gigantism due to prepubertal growth hormone excess. There is no precise definition of the degree of height that qualifies a person to be termed a "giant." The term has been typically applied to those whose height is not just in the upper 1% of the population but several standard deviations above mean for persons of the same sex, age, and ethnic ancestry. Typical adult heights of Americans of European descent to whom the term might be applied are 2.25 - 2.40 metres (7'6" - 8 feet). The term is not applied to those whose heights appear to be the healthy result of normal genetics and nutrition.
See more at Wikipedia.org...

Adjective
1. great in vertical dimension; high in stature; "tall people"; "tall buildings"; "tall trees"; "tall ships"
(antonym) short
(similar) full-length
(see-also) large, big
(attribute) stature, height
2. lofty in style; "he engages in so much tall talk, one never really realizes what he is saying"
(synonym) grandiloquent, magniloquent
(similar) rhetorical
3. impressively difficult; "a tall order"
(synonym) tall(a)
(similar) difficult, hard
(classification) colloquialism
4. too improbable to admit of belief; "a tall story"
(synonym) improbable, marvelous, marvellous, tall(a)
(similar) incredible, unbelievable

(superl.)
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.
  

(superl.)
Fine; splendid; excellent; also, extravagant; excessive.
  

(superl.)
Brave; bold; courageous.
  

<language> TAC List Language.
["TALL - A List Processor for the Philco 2000", J. Feldman, CACM 5(9):484-485 (Sep 1962)].
(1995-03-01)