"inclined to slouch," in any sense, "somewhat slouching," 1690s, from slouch + -y (2). Related: Slouchily; slouchiness.
Entries linking to slouchy
slouch n.
1510s, "lazy man; ungainly fellow," a variant of slouk (1560s), which is of obscure origin, but probably ultimately from a Scandinavian source (perhaps Old Norse slokr "lazy fellow"), and related to slack (adj.) on the notion of "sagging, drooping." Also compare Middle English slought, slougth, variants of slouthe "indolence, slothfulness, sloth."
The meaning "a drooping or stooping of the head and shoulders" is by 1725. In praise, with a negative (as in she's no slouch) by 1796, American English.
-y 2
adjective suffix, "full of or characterized by," from Old English -ig, from Proto-Germanic *-iga- (source also of Dutch, Danish, German -ig, Gothic -egs), from PIE -(i)ko-, adjectival suffix, cognate with elements in Greek -ikos, Latin -icus (see -ic). Originally added to nouns in Old English; used from 13c. with verbs, and by 15c. even with other adjectives (for example crispy). Adjectives such as hugy, vasty are artificial words that exist for the sake of poetical metrics.