randomness vs haphazardness

randomness and haphazardness both are nouns.

Word	Noun	Adjective	Verb	Adverb
randomness	Yes	No	No	No
haphazardness	Yes	No	No	No

As nouns, randomness and haphazardness are synonyms defined as:

randomness and haphazardness: the quality of lacking any predictable order or plan

Other synonyms of randomness include noise, stochasticity.

randomness (noun)	haphazardness (noun)
the quality of lacking any predictable order or plan	the quality of lacking any predictable order or plan
(thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work