posture vs attitudinize

posture is a noun but attitudinize is not a noun.

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

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

Other hyponyms of posture include attitudinise.

posture (noun)	attitudinize (noun)
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

posture (verb)	attitudinize (verb)
assume a posture as for artistic purposes	assume certain affected attitudes
behave affectedly or unnaturally in order to impress others