Synonyms of the word

furtive

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

backstair

• adj. clandestine, secret or furtive.
• n. The backstairs (stairs at the rear of a building).

backstairs

• n. A staircase at the rear of a building or one normally only used by servants and tradesmen.
• n. An indirect or furtive means of access or intercourse.
• adj. Secret or furtive.
• adj. Scandalous.

concealed

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

covert

• adj. (now rare) Hidden, covered over; overgrown, sheltered.
• adj. (figuratively) Secret, surreptitious, concealed.
• n. A covering.
• n. A disguise.
• n. A hiding place.
• n. Area of thick undergrowth where animals hide.
• n. (ornithology) A feather that covers the bases of flight feathers.

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.

sneaky

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

stealthy

• adj. Characterized by or resembling stealth or secrecy.

surreptitious

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