undynamic vs adynamic

undynamic and adynamic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
undynamic	No	Yes	No	No
adynamic	No	Yes	No	No

As adjectives, undynamic and adynamic are synonyms defined as:

undynamic and adynamic: characterized by an absence of force or forcefulness

undynamic (adjective)	adynamic (adjective)
characterized by an absence of force or forcefulness	characterized by an absence of force or forcefulness
	lacking energy or vitality