detrimental adj. (det ri MENT ul) damaging. Smoking is detrimental to your health.
devil's advocate n. one who represents an opposing side simply for the sake of argument or as an exercise. I don't really believe that everyone should own a gun, but in debate class I like to play the devil's advocate.
diabolical adj. (di yuh BOL uh kul) of the devil; fiendish. Beware of diabolical powers unleashed on Halloween.
diatribe n. (DYE uh tribe) a critical denunciation.
My editor wrote a long-winded diatribe criticizing not only my article but also my viewpoint.
dichotomy n. (di KOT uh mee) a division comprising two opposing viewpoints. There is a broad dichotomy of opinion between the sexes.
didactic adj. (dye DAK tik) educational, particularly concerning morals. The Sunday school teacher put on a didactic skit about stealing.
dilapidated adj. (di LAP i dayt ud) run-down; falling apart. The next stiff wind would probably knock down the old, dilapidated building.
dilettante adj. (DIL i TAHNT) one who dabbles in the arts or has an amateurish knowledge of a field. I love poetry, but when it comes to writing it, I'm strictly a dilettante.
diligent adj. (DIL uh junt) hard-working and persevering. She was a diligent worker who would not quit until the job was done right.
diplomacy n. (di PLOH muh see) the act and skill of cultivating and maintaining good relationships with others; tact, in international or personal relations. The highest form of diplomacy must be employed to prevent international hostilities from exploding into war.
disaffected adj. (dis uh FEK tid) full of resentment; alienated. Disaffected, the laid-off workers staged a demonstration against the company.
disarming adj. (dis ARM ing) hostility-reducing, often through charm. The beauty pageant winner's smile was disarming and tended to dampen any hostility felt toward her by the losers.
discerning adj. (di SUR ning) highly perceptive; sharp in judgment. The judge cast a discerning eye over the defendants.
disclaimer n. (dis KLAYM ur) a statement that releases one from legal liability. Manufacturers of dangerous products must issue public disclaimers in order to protect themselves from lawsuits.
disconcerted adj. (DIS kun SURT ed) disturbed; upset. Dogs are often disconcerted by the sounds of an approaching thunderstorm.
discord n. (DIS kord) conflict and disagreement. There was a great discord among the panelists as the debate began.
discreet adj. (dis KREET) unobtrusive, tactful, and low-key. If you must burp at the dinner table, please be discreet.
disdain n. (dis DAYN) contempt. I feel nothing but disdain toward those who abuse animals.