Lanky means awkwardly tall and thin. A lanky teenager, lanky limbs, tall and lanky.
The awkwardness is part of it — lanky is tall and thin with the coordination not quite caught up, which is why it suits adolescence. It is affectionate rather than unkind. Note lank, meaning long and limp, which is used of hair and is not a compliment.
1adjectivelankyAwkwardly tall and thin.
“The lanky teenager had to bend down to get through the door.”
lanky is a quality of build.
Also accepted in games: gangly
Proto-Indo-European
*kleng- — to bend, turn, wind, twist
Proto-Germanic
*hlankaz — lank, thin
Proto-West Germanic
*hlank
Old English
hlanc
Middle English
lank
English
lank
English, today
lanky
From lank + -y. lank comes from Middle English lank, from Old English hlanc, from Proto-West Germanic hlank, from Proto-Germanic hlankaz (“lank, thin”), from Proto-Indo-European kleng- (“to bend, turn, wind, twist”); compare German lenken (“to turn”), Gelenk (“joint”), Old High German hlanca (“hip, side, flank”), and English link of a chain.
Etymology from Wiktionary, CC BY-SA