- defamation: Malicious and groundless injury done to the reputation or good name of another.
- defame: To slander.
- default: The neglect or omission of a legal requirement.
- defendant: A person against whom a suit is brought.
- defensible: Capable of being maintained or justified.
- defensive: Carried on in resistance to aggression.
- defer: To delay or put off to some other time.
- deference: Respectful submission or yielding, as to another's opinion, wishes, or judgment.
- defiant: Characterized by bold or insolent opposition.
- deficiency: Lack or insufficiency.
- deficient: Not having an adequate or proper supply or amount.
- definite: Having an exact signification or positive meaning.
- deflect: To cause to turn aside or downward.
- deforest: To clear of forests.
- deform: To disfigure.
- deformity: A disfigurement.
- defraud: To deprive of something dishonestly.
- defray: To make payment for.
- degeneracy: A becoming worse.
- degenerate: To become worse or inferior.
- degradation: Diminution, as of strength or magnitude.
- degrade: To take away honors or position from.
- dehydrate: To deprive of water.
- deify: To regard or worship as a god.
- deign: To deem worthy of notice or account.
- deist: One who believes in God, but denies supernatural revelation.
- deity: A god, goddess, or divine person.
- deject: To dishearten.
- dejection: Melancholy.
- delectable: Delightful to the taste or to the senses.
- delectation: Delight.
- deleterious: Hurtful, morally or physically.
- delicacy: That which is agreeable to a fine taste.
- delineate: To represent by sketch or diagram.
- deliquesce: To dissolve gradually and become liquid by absorption of moisture from the air.
- delirious: Raving.
- delude: To mislead the mind or judgment of.
- deluge: To overwhelm with a flood of water.
- delusion: Mistaken conviction, especially when more or less enduring.
- demagnetize: To deprive (a magnet) of magnetism.
- demagogue: An unprincipled politician.
- demeanor: Deportment.
- demented: Insane.
- demerit: A mark for failure or bad conduct.
- demise: Death.
- demobilize: To disband, as troops.
- demolish: To annihilate.
- demonstrable: Capable of positive proof.
- demonstrate: To prove indubitably.
- demonstrative: Inclined to strong exhibition or expression of feeling or thoughts.