commitment vs committedness

commitment and committedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
commitment	Yes	No	No	No
committedness	Yes	No	No	No

As nouns, commitment and committedness are synonyms defined as:

commitment and committedness: the trait of sincere and steadfast fixity of purpose

commitment (noun)	committedness (noun)
the act of binding yourself (intellectually or emotionally) to a course of action	the trait of sincere and steadfast fixity of purpose
the official act of consigning a person to confinement (as in a prison or mental hospital)
an engagement by contract involving financial obligation
the trait of sincere and steadfast fixity of purpose
a message that makes a pledge