cautiousness vs caution

cautiousness and caution both are nouns.

Word	Noun	Adjective	Verb	Adverb
cautiousness	Yes	No	No	No
caution	Yes	No	Yes	No

As nouns, cautiousness and caution are synonyms defined as:

cautiousness and caution: the trait of being cautious; being attentive to possible danger

Other synonyms of cautiousness include carefulness.

cautiousness (noun)	caution (noun)
the trait of being cautious; being attentive to possible danger	the trait of being cautious; being attentive to possible danger
	the trait of being circumspect and prudent
	judiciousness in avoiding harm or danger
	a warning against certain acts

cautiousness (verb)	caution (verb)
	warn strongly; put on guard