As adjectives the difference between unthinking and disregardful
is that unthinking is without proper thought; thoughtless while disregardful is inconsiderate, thoughtless, heedless, regardless.
As a verb unthinking
is present participle of unthink.
unthinking
English
Adjective
(
en adjective)
Without proper thought; thoughtless.
Showing no regard; careless or unconcerned.
Verb
(head)
disregardful
English
Adjective
(
en adjective)
inconsiderate, thoughtless, heedless, regardless
Derived terms
* disregardfully
* disregardfulness