1. cost-efficient productive relative to the cost
  2. sufficient of a quantity that can fulfill a need or requirement
  3. proficient having or showing knowledge and skill and aptitude
  4. insufficient of a quantity not able to fulfill a need or requirement
  5. efficient being effective without wasting time, effort, or expense
  6. coefficient a constant number that serves as a measure of some property
  7. self-sufficient able to provide for your own needs without help from others
  8. deficient inadequate in amount or degree
  9. mass deficiency the amount by which the mass of an atomic nucleus is less than the sum of the masses of its constituent particles
  10. sorbefacient inducing or promoting absorption
  11. conscientious characterized by extreme care and great effort
  12. Stuyvesant the last Dutch colonial administrator of New Netherland
  13. calorifacient producing heat; usually used of foods
  14. specificity the quality of being particular rather than general
  15. putrefacient causing or promoting bacterial putrefaction
  16. absorbefacient inducing or promoting absorption
  17. mutafacient capable of inducing mutation
  18. regression coefficient when the regression line is linear (y = ax + b) the regression coefficient is the constant (a) that represents the rate of change of one variable (y) as a function of changes in the other (x); it is the slope of the regression line
  19. satisfaction the state of being gratified
  20. satisfied filled with contentment