Synonyms of the word

sneaky

• adj. Difficult to catch due to constantly outwitting the adversaries.
• adj. Dishonest; deceitful.

concealed

• v. simple past tense and past participle of conceal.

corrupt

• adj. In a depraved state; debased; perverted; morally degenerate; weak in morals.
• adj. Abounding in errors; not genuine or correct; in an invalid state.
• adj. In a putrid state; spoiled; tainted; vitiated; unsound.
• v. (transitive) To make corrupt; to change from good to bad; to draw away from the right path; to deprave;…
• v. (intransitive) To become putrid or tainted; to putrefy; to rot.
• v. To debase or render impure by alterations or innovations; to falsify.
• v. To waste, spoil, or consume; to make worthless.

crooked

• v. simple past tense and past participle of crook.
• adj. Not straight; having one or more bends or angles.
• adj. Set at an angle; not vertical or square.
• adj. (figuratively) Dishonest or illegal; corrupt.

furtive

• adj. Stealthy.
• adj. Exhibiting guilty or evasive secrecy.

sneak

• n. One who sneaks; one who moves stealthily to acquire an item or information.
• n. A cheat; a con artist; a trickster.
• n. An informer; a tell-tale.
• n. (obsolete, cricket) A ball bowled so as to roll along the ground; a daisy-cutter.
• n. (US) A sneaker; a tennis shoe.
• v. (intransitive) To creep or go stealthily; to come or go while trying to avoid detection, as a person who…
• v. (transitive) To take something stealthily without permission.
• v. (transitive, dated) To hide, especially in a mean or cowardly manner.
• v. (intransitive) (informal, especially with on) To inform an authority about another's misdemeanours; to…
• adj. In advance; before release to the general public.
• adj. In a stealthy or surreptitious manner.

stealthy

• adj. Characterized by or resembling stealth or secrecy.

surreptitious

• adj. Stealthy, furtive, well hidden, covert (especially movements).

underhand

• adj. secret; clandestine.
• adj. (by extension) dishonest and sneaky; done in a secret or sly manner.
• adj. (in various ball games, of a ball) thrown (etc.) with the hand brought forward and up from below.
• adv. with an underhand movement.
• adv. in a sly, sneaky or secret manner.
• v. To toss or lob with an underhand movement.
• v. To trick, deceive or gull.
• v. (mining) To excavate downward in successive steps or horizontal slices while positioned above on unbroken…
• n. (textiles) The lower of two hands, the hand under the work.

underhanded

• adj. Done by moving the hand (and arm) from below.
• adj. Sly, dishonest, corrupt, cheating.
• adj. Insincere; sarcastic.
• adj. Secret; surreptitious.
• adj. Understaffed.
• adv. In an underhanded manner.
• v. simple past tense and past participle of underhand.
• n. Devious people, collectively.