sprawling vs posture

sprawling and posture both are nouns.

Word	Noun	Adjective	Verb	Adverb
sprawling	Yes	Yes	No	No
posture	Yes	No	Yes	No

As nouns, posture is a hypernym of sprawling; that is, posture is a word with a broader meaning than sprawling:

Other hypernyms of sprawling include attitude, position.

sprawling (noun)	posture (noun)
an ungainly posture with arms and legs spread about	the arrangement of the body and its limbs
	characteristic way of bearing one's body
	capability in terms of personnel and materiel that affect the capacity to fight a war
	a rationalized mental attitude

sprawling (adjective)	posture (adjective)
spreading out in different directions or distributed irregularly

sprawling (verb)	posture (verb)
	assume a posture as for artistic purposes
	behave affectedly or unnaturally in order to impress others