suspense vs incertitude

suspense and incertitude both are nouns.

Word	Noun	Adjective	Verb	Adverb
suspense	Yes	No	No	No
incertitude	Yes	No	No	No

As nouns, incertitude is a hypernym of suspense; that is, incertitude is a word with a broader meaning than suspense:

Other hypernyms of suspense include doubt, doubtfulness, dubiety, dubiousness, uncertainty.

suspense (noun)	incertitude (noun)
an uncertain cognitive state	the state of being unsure of something
excited anticipation of an approaching climax
apprehension about what is going to happen