caution vs cautiousness

caution and cautiousness both are nouns.

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

As nouns, caution and cautiousness are synonyms defined as:

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

Other synonyms of caution include carefulness.

caution (noun)	cautiousness (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

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