Synonyms of the word

unavowed

• adj. Not avowed.

concealed

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

secret

• n. (countable, uncountable) Knowledge that is hidden and intended to be kept hidden.
• n. (uncountable) Something not understood or known.
• n. (archaic, in the plural) The genital organs.
• adj. Being or kept hidden.
• adj. (obsolete) Withdrawn from general intercourse or notice; in retirement or secrecy; secluded.
• adj. (obsolete) Faithful to a secret; not inclined to divulge or betray confidence; secretive.
• adj. (obsolete) Separate; distinct.
• v. (transitive) To make or keep secret.
• v. (transitive) To hide secretly.

sneaking

• v. present participle of sneak.
• n. The act of one who sneaks.

unacknowledged

• adj. Not acknowledged.

undeclared

• adj. Not declared.