consideration vs considerateness

consideration and considerateness both are nouns.

Word	Noun	Adjective	Verb	Adverb
consideration	Yes	No	No	No
considerateness	Yes	No	No	No

As nouns, consideration and considerateness are synonyms defined as:

consideration and considerateness: kind and considerate regard for others

Other synonyms of consideration include thoughtfulness.

consideration (noun)	considerateness (noun)
a considerate and thoughtful act	kind and considerate regard for others
kind and considerate regard for others
the process of giving careful thought to something
information that should be kept in mind when making a decision
a discussion of a topic (as in a meeting)
a fee charged in advance to retain the services of someone