se·cret /ˈsēkrit/ not known or seen or not meant to be known or seen by others. "are you not going to tell me this big secret?" synonyms:confidential, strictly confidential, top secret, classified, restricted, unrevealed, undisclosed, unpublished, untold, unknown, uncommunicated, behind someone's back, under wraps, unofficial, off the record, not for publication/circulation, not to be made public, not to be disclosed. Steve Harrington X readerAll Rights Reserved