inertia vs trait

inertia and trait both are nouns.

Word	Noun	Adjective	Verb	Adverb
inertia	Yes	No	No	No
trait	Yes	No	No	No

As nouns, trait is a hypernym of inertia; that is, trait is a word with a broader meaning than inertia:

inertia (noun)	trait (noun)
a disposition to remain inactive or inert	a distinguishing feature of your personal nature
(physics) the tendency of a body to maintain its state of rest or uniform motion unless acted upon by an external force