thoughtfulness vs trait

thoughtfulness and trait both are nouns.

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

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

thoughtfulness (noun)	trait (noun)
a considerate and thoughtful act	a distinguishing feature of your personal nature
the trait of thinking carefully before acting
kind and considerate regard for others
a calm, lengthy, intent consideration