Lankiness n. : The condition or quality or being lanky.

Example:
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Taxonomy
dictionary, encyclopedia, Synonyms, online dictionary, thesaurus browser, Free Online Dictionary, antonyms, English dictionary, physique, free online English dictionary, the human body, Translations, law, explanation, Acronyms, Idioms, ly adv, ness.

Defination from the web:
Lankiness in the Online Dictionary. Meaning of Lankiness. Pronunciation of Lankiness. Translations of Lankiness. Lankiness synonyms, Lankiness antonyms. ... At 6 feet 3 inches, he towers when standing, his boyish lankiness diffusing any menace his height may suggest. ...