imperceptible imperceptible  /ˌɪm pər ˈsɛp tɪ bəl/


  • (adj) impossible or difficult to perceive by the mind or senses


  1. Either way the spores would be imperceptible, because in order to be used as a weapon, the particles have to be microscopic in size.
  2. Through previous centuries, eating changed by nearly imperceptible degrees, and mostly toward just getting enough.
  3. At most, he registers anxiety with an almost imperceptible flicker of his eyes.


  • Greg Johnson: Evolution can be messy, but the strong survive

    Evolution can come quickly, disturbing or disrupting the status quo, or it can come over longer periods of time in subtle, somewhat imperceptible ways. In either case, change is messy and often painful.
    on June 12, 2013     Source: Knoxville News Sentinel


  1. "People will tell you Europe is not in a crisis - it is in a profound crisis," a gloomy Luxembourg Prime Minister Jean-Claude Juncker said after chairing Friday's failed summit. "I fear a long, creeping, almost imperceptible weakening...... a...
    on Jun 19, 2005 By: Jean-Claude Juncker Source: Independent Online

  2. "Human beings are so much larger than insects, it's very hard for us to appreciate that what to us is an imperceptible change in habitat can have devastating consequences for a species like the bizarre and beautiful large blue butterfly. A...
    on Jun 16, 2009 By: Jeremy Thomas Source: Science Daily (press release)

  3. "Television has become, so to speak, the background radiation of the social and intellectual university, the all-but-imperceptible residue of the electronic big bang of a century past, so farmiliar and so integrated with American cutlure that we no...
    on May 5, 2008 By: Neil Postman Source: Rutland Herald

Word of the Day
untenable untenable
/ən ˈtɛ nə bəl /