Definition of "imperceptive" [im•per•cep•tive]

• Lacking perception; not perceptive. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "So it is doubtful that he missed the nuance, as some more imperceptive political figures might."
• "“American Idol” was an imperceptive peek into the world of show business."
• "It's been a hard fight, but methinks that all but the most pessimistic and imperceptive would notice the slight albeit glacial shift towards the right way of doing things."