| A | B |
| credible | believable, reliable, trustworthy |
| credulous | easily deceived, gullible |
| cryptic | having a hidden meaning; mysterious |
| decorum | conformity to social mores; politeness |
| deduction | conclusion based upon reason |
| defection | v. to desert one's country; n. a deficiency or imperfection |
| demure | shy, modest, reserved |
| denizen | an inhabitant; a person at home in a particular region |
| derive | to receive; to trace to a source |
| derogatory | belittling; disparaging; cutting someone or something down! |