cunctator vs postponer

cunctator and postponer both are nouns.

Word	Noun	Adjective	Verb	Adverb
cunctator	Yes	No	No	No
postponer	Yes	No	No	No

As nouns, cunctator and postponer are synonyms defined as:

cunctator and postponer: someone who postpones work (especially out of laziness or habitual carelessness)

Other synonyms of cunctator include procrastinator.

cunctator (noun)	postponer (noun)
someone who postpones work (especially out of laziness or habitual carelessness)	someone who postpones work (especially out of laziness or habitual carelessness)