rangy

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Having long slender limbs.
2. adj. Inclined to rove.
3. adj. Providing ample range; roomy.

Century Dictionary and Cyclopedia

1. In stock-breeding, adapted for ranging or running about, or indicating such adaptation; quick or easy in movement; of roving character or capability: as, a rangy yoke of oxen (that is, good travelers, capable of making good speed, as in plowing); rangy steers (that is, steers disposed to wander away to a distance, as on a stock-range). The word is also sometimes applied to a roving person, as a lad who wanders from home, or who has a predilection for a roving life, as that of a sailor.
2. Having or permitting range or scope; roomy: commodious.
3. Said of an animal, especially a cow, which has a long and small barrel or body and narrow hind quarters, with unusual space between the front and hind legs. A rangy cow may be good for beef, but is poor for dairy purposes.
4. Mountainous.

Wiktionary

1. adj. Slender and long of limb; lanky
2. adj. Prone to roaming around with animal-like movements.

GNU Webster's 1913

1. adj. Inclined or able to range, or rove about, for considerable distances; apt or suited for much roving, -- chiefly used of cattle.

WordNet 3.0

1. adj. tall and thin and having long slender limbs
2. adj. allowing ample room for ranging
3. adj. adapted to wandering or roaming