deceive, v. delude, [beguile], mislead, [gull], [impose upon], [dupe], circumvent, [hoodwink], [bamboozle]. Antonyms: [undeceive], [disillusionize], disabuse.
deceiver, n. [impostor], [charlatan], [mountebank], swindler, [knave], cogger.
decency, n. propriety, seemliness, decorum, [modesty], Antonyms: See [indecency].
decent, a. [suitable], [modest], decorous, [seemly], [respectable]. Antonyms: See indecent.
deception, n. imposition, [craft], duplicity, [deceit], hoax, [fallacy], [ruse], [imposture], [artifice], [illusion], prevarication, [finesse], dissimulation, cozenage, [sophistry], coggery. Antonyms: guilelessness, [candor], disillusionment, fair [dealing], [sincerity].
deceptive, a. delusive, [fallacious], [deceitful], [specious], insidious, [sophistical]. Antonyms: [guileless], [candid], ingenuous, [sincere], [open].
decharm, v. [disillusionize], disenchant, disabuse.
decide, v. determine, [settle], [conclude], [resolve].
decided, a. unequivocal, determined, pronounced, [unwavering], [positive], incontrovertible.
decision, n. determination, [settlement], [conclusion], [verdict], [inference], [deduction]; firmness, [resolution], [constancy], steadfastness. Antonyms: [indecision], [irresolution], [vacillation].