Connivance1. (n.) Intentional failure or forbearance to discover a fault or wrongdoing; voluntary oversight; passive consent or cooperation.
2. (n.) Corrupt or guilty assent to wrongdoing, not involving actual participation in, but knowledge of, and failure to prevent or oppose it.
Thesaurus Entries
OK, acceptance, accord, acquiescence, affirmation, affirmative, affirmative voice, agreement, approbation, approval, artifice, assent, aye, blessing, cabal, chicane, chicanery, collusion, compliance, complicity, complot, confederacy, connivery, consent, conspiracy, contrivance, contriving, counterplot, covin, deep-laid plot, dodgery, eagerness, endorsement, engineering, finagling, finesse, foul play, frame-up, game, indulgence, intrigue, little game, machination, maneuvering, manipulation, okay, overlooking, permission, permissiveness, pettifoggery, pettifogging, plot, plotting, promptitude, promptness, ratification, readiness, rigging, sanction, scheme, schemery, scheming, sharp practice, skulduggery, sleight, stratagem, submission, sufferance, supercherie, tolerance, toleration, trick, trickery, underhand dealing, underplot, ungrudgingness, unloathness, unreluctance, web of intrigue, willingness, winking, wire-pulling