terminus ad quem vs terminal point

terminus ad quem and terminal point both are nouns.

Word	Noun	Adjective	Verb	Adverb
terminus ad quem	Yes	No	No	No
terminal point	Yes	No	No	No

As nouns, terminus ad quem and terminal point are synonyms defined as:

Other synonyms of terminus ad quem include limit.

terminus ad quem (noun)	terminal point (noun)
final or latest limiting point	final or latest limiting point