unsympathetic
un-sym-pa-thet-ic
adjective
Lacking kindness, understanding, or compassion towards others' difficulties or feelings.
"His unsympathetic attitude upset the team."
Thesaurus
Synonyms: closed, unreceptive, unsympathising, unsympathizing, unlikable, unappealing, unlikeable, incompatible, disagreeable, uncongenial, unkindly, unkind
Antonyms: appealing, likable, likeable, sympathetic