longanimity vs forbearance

longanimity and forbearance both are nouns.

Word	Noun	Adjective	Verb	Adverb
longanimity	Yes	No	No	No
forbearance	Yes	No	No	No

As nouns, longanimity and forbearance are synonyms defined as:

longanimity and forbearance: good-natured tolerance of delay or incompetence

Other synonyms of longanimity include patience.

longanimity (noun)	forbearance (noun)
good-natured tolerance of delay or incompetence	a delay in enforcing rights or claims or privileges; refraining from acting
	good-natured tolerance of delay or incompetence