sereness vs dryness

sereness and dryness both are nouns.

Word	Noun	Adjective	Verb	Adverb
sereness	Yes	No	No	No
dryness	Yes	No	No	No

As nouns, dryness is a hypernym of sereness; that is, dryness is a word with a broader meaning than sereness:

sereness: a withered dryness
dryness: the condition of not containing or being covered by a liquid (especially water)

Other hypernyms of sereness include waterlessness, xerotes.

sereness (noun)	dryness (noun)
a withered dryness	objectivity and detachment
	moderation in or abstinence from alcohol or other drugs
	the condition of not containing or being covered by a liquid (especially water)