4
inattentive(adjective, blind, obtuse, unobservant)
4
indiscriminating(adjective, obtuse, unobservant)
4
insensible(adjective, senseless)
4
undiscriminating(adjective, casual, unfussy, cursory)
3
careless(adjective, casual, insensitive, inattentive, unthinking)
3
foolish(adjective, obtuse, unobservant)
3
heedless(adjective, inattentive, blind, obtuse, unobservant)
3
impercipient
3
inconsiderate(adjective, sharp, rough, careless, thoughtless)
3
indiscriminate(adjective, casual, blind, unfussy, cursory)
3
insentient(adjective, senseless)
3
irrational(adjective, obtuse, unobservant)
3
mindless(adjective, obtuse, unobservant)
3
nearsighted(adjective, blind)
3
silly(adjective, obtuse, unobservant)
3
tactless(adjective, sharp, rough, careless, thoughtless)
3
unobservant(adjective, inattentive, blind, obtuse)
3
unseeing(adjective, inattentive, blind)
2
aloof(adjective, senseless)
2
brainless
11 years ago|5.9k views|share |citing 
APASmart Define. (2015). unperceptive thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unperceptive/thesaurus/synonyms
ChicagoSmart Define. 2015. "unperceptive thesaurus" https://smartdefine.org/unperceptive/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, unperceptive thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unperceptive/thesaurus/synonyms>.
MLASmart Define. "unperceptive thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/unperceptive/thesaurus/synonyms>