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200 Words Every Twelfth Grader Should Know How to Spell: List 10

Learn these challenging spelling words for twelfth-grade students.
15 words 11 learners

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Full list of words from this list:

  1. nefarious
    extremely wicked
  2. fortuitous
    lucky; occurring by happy chance
  3. lassitude
    a feeling of lack of interest or energy
  4. certitude
    complete assurance or confidence
  5. iridescent
    varying in color when seen in different lights
  6. pugnacious
    ready and able to resort to force or violence
  7. unctuous
    unpleasantly and excessively suave or ingratiating
  8. slothful
    disinclined to work or exertion
  9. empathy
    understanding and entering into another's feelings
  10. loquacious
    full of trivial conversation
  11. quagmire
    a soft wet area of low-lying land that sinks underfoot
  12. hackneyed
    repeated too often; overfamiliar through overuse
  13. bona fide
    not counterfeit or copied
  14. recalcitrant
    stubbornly resistant to authority or control
  15. astringent
    tending to draw together or constrict soft organic tissue
Created on Mon Jun 09 15:39:09 EDT 2025

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