| A | B |
| Acuity | actueness of perception; keenness |
| Consummate | supremely accomplished or skilled |
| Cunning | skill or adeptness in performance |
| Deft | skillful; adroit |
| Endowment | a natural gift or quality |
| Facile | done or achieved with little effort; easy |
| Incompetent | not capable; not well qualified |
| Inept | awkward or clumsy |
| Proficient | performing a skill with facility |
| Propensity | an innate inclination; tendency |