lanky

adjective, lank·i·er, lank·i·est.

1. ungracefully thin and rawboned; bony; gaunt: a very tall and lanky man.

adjective lankier or lankiest

1. tall, thin, and loose-jointed

adj.1630s, “straight and flat,” used of hair, from lank + -y (2); sense of “awkwardly tall and thin” is first recorded 1818. Related: Lankiness.