pull away vs retrograde

pull away is not an adjective while retrograde is an adjective.

Word	Noun	Adjective	Verb	Adverb
pull away	No	No	Yes	No
retrograde	No	Yes	Yes	No

As verbs, retrograde is a hyponym of pull away; that is, retrograde is a word with a more specific, narrower meaning than pull away:

Other hyponyms of pull away include fall back, retreat, back down, back off, back up.

pull away (adjective)	retrograde (adjective)
	of amnesia; affecting time immediately preceding trauma
	moving from east to west on the celestial sphere; or--for planets--around the sun in a direction opposite to that of the Earth
	going from better to worse
	moving or directed or tending in a backward direction or contrary to a previous direction

pull away (verb)	retrograde (verb)
pull back or move away or backward	get worse or fall back to a previous condition
	go back over
	move back
	move in a direction contrary to the usual one
	move backward in an orbit, of celestial bodies