gracelessness vs stiffness

gracelessness and stiffness both are nouns.

Word	Noun	Adjective	Verb	Adverb
gracelessness	Yes	No	No	No
stiffness	Yes	No	No	No

As nouns, gracelessness and stiffness are synonyms defined as:

gracelessness and stiffness: the inelegance of someone stiff and unrelaxed (as by embarrassment)

Other synonyms of gracelessness include awkwardness, clumsiness.

gracelessness (noun)	stiffness (noun)
an unpleasant lack of grace in carriage or form or movement or expression	the physical property of being inflexible and hard to bend
the inelegance of someone stiff and unrelaxed (as by embarrassment)	the property of moving with pain or difficulty
	the inelegance of someone stiff and unrelaxed (as by embarrassment)
	excessive sternness
	firm resoluteness in purpose or opinion or action