As adjectives the difference between discourteous and unresponsive
is that discourteous is impolite; lacking consideration for others while unresponsive is not responsive; unreactive.
discourteous
English
Adjective
(
en adjective)
impolite; lacking consideration for others
Synonyms
* See also
Antonyms
* courteous
unresponsive
English
Adjective
(
en adjective)
Not responsive; unreactive.
Indifferent or apathetic; emotionless.
Synonyms
* nonresponsive
Antonyms
* responsive