| A | B |
| elucidate | to make clear, clarify |
| lucid | clear, readily understood |
| exacerbate | to sharpen or aggravate a conflict, inflame |
| placate | to calm the anger of |
| implacable | incapable of being calmed, relentless |
| acute | a sharp angle, very keen |
| perfidious | treacherous, untrustworthy |
| fidelity | loyalty, faithfulness |
| infidelity | unfaithfulness |
| acuity | keenness of perception |
| acumen | mental sharpness |
| complacent | to be so calm as to be self-satisfied, smug |
| acrimonious | full of spite, bitter, nasty |
| diffident | lack of faith in oneself, lack of confidence |
| superfluous | to flow above, hence exceeding what is necessary |
| antipathy | feeling against comeone or something, dislike |
| empathy | feeling the same thing as someone else |
| acrid | unpleasantly pungent in taste or odor |
| confluence | to flow together, convergence |
| egregious | out of the group, outstandingly bad |
| affluent | to flow in abundance, wealthy |
| pellucid | very clear, transparent |
| translucent | permitting the passage of light |