adjective
1.
Synonyms: insusceptible , impassive, insensitive, insentient, unimpressible, unimpressionable, unsusceptible
Antonyms: responsive
2.
Synonyms: frigid 3, cold, inhibited, passionless, undersexed
UNRESPONSIVE
Meaning of UNRESPONSIVE in English
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003