involving collusion; fraudulently contrived by agreement: a collusive agreement to increase prices.

Origin of collusive

First recorded in 1665–75; collus(ion) + -ive
Related formscol·lu·sive·ly, adverbcol·lu·sive·ness, nounnon·col·lu·sive, adjectivenon·col·lu·sive·ly, adverbnon·col·lu·sive·ness, nounpre·col·lu·sive, adjectiveun·col·lu·sive, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for collusive

tricky, conniving

Examples from the Web for collusive

Contemporary Examples of collusive

Historical Examples of collusive

Word Origin and History for collusive

1670s, from Latin collus-, past participle stem of colludere (see collude) + -ive.

Online Etymology Dictionary, © 2010 Douglas Harper