1. noxious injurious to physical or mental health
  2. nexus the means of connection between things linked in series
  3. conscious having awareness of surroundings and sensations and thoughts
  4. sagacious acutely insightful and wise
  5. tenacious stubbornly unyielding
  6. loquacious full of trivial conversation
  7. negociate confer with another in order to come to terms or reach an agreement
  8. precocious characterized by exceptionally early development
  9. negation the speech act of denying or refusing
  10. anxious causing or fraught with or showing nervousness
  11. negotiate discuss the terms of an arrangement
  12. capricious determined by chance or impulse rather than by necessity
  13. necrosis the localized death of living cells
  14. auspicious indicating favorable circumstances and good luck
  15. fugacious lasting a very short time
  16. pugnacious ready and able to resort to force or violence
  17. innoxious having no adverse effect
  18. genocide systematic killing of a racial or cultural group
  19. innocuous not injurious to physical or mental health
  20. necrose undergo necrosis