succession vs successiveness

succession and successiveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
succession	Yes	No	No	No
successiveness	Yes	No	No	No

As nouns, succession and successiveness are synonyms defined as:

succession and successiveness: a following of one thing after another in time

Other synonyms of succession include chronological sequence, chronological succession, sequence.

succession (noun)	successiveness (noun)
the action of following in order	a following of one thing after another in time
acquisition of property by descent or by will
a following of one thing after another in time
a group of people or things arranged or following in order
(ecology) the gradual and orderly process of change in an ecosystem brought about by the progressive replacement of one community by another until a stable climax is established