attitude vs posture

attitude and posture both are nouns.

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

As nouns, attitude and posture are synonyms defined as:

Other synonyms of attitude include position.

As nouns, posture is a hyponym of attitude; that is, posture is a word with a more specific, narrower meaning than attitude:

attitude: a complex mental state involving beliefs and feelings and values and dispositions to act in certain ways
posture: a rationalized mental attitude

attitude (noun)	posture (noun)
a theatrical pose created for effect	the arrangement of the body and its limbs
the arrangement of the body and its limbs	characteristic way of bearing one's body
a complex mental state involving beliefs and feelings and values and dispositions to act in certain ways	capability in terms of personnel and materiel that affect the capacity to fight a war
position of aircraft or spacecraft relative to a frame of reference (the horizon or direction of motion)	a rationalized mental attitude

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