Power Prefixes for Eighth Grade Students: un- (not, opposite of)

Learn these common words starting with the prefix un meaning "not, opposite of, lacking."
13 words 20 learners

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Full list of words from this list:

words only definitions & notes
  1. unfair
    marked by injustice, inequality, or bias
  2. uncertainty
    the state of being unsure of something
  3. uncomfortable
    providing or experiencing physical unease
  4. unavailable
    not accessible or at hand
  5. unpredictable
    unknown in advance
  6. unbearable
    incapable of being put up with
  7. unreliable
    not worthy of trust
  8. uninformed
    lacking in knowledge or necessary facts
  9. unintentional
    without deliberate intent
  10. unbelievable
    beyond understanding
  11. unattainable
    impossible to achieve
  12. unrecognizable
    unable to be identified, often because of significant change
  13. unresponsive
    not reacting to some influence or stimulus
Created on Wed Jun 18 14:57:24 EDT 2025

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