uneducated guess

plural uneducated guesses

1. An arbitrary estimate or judgment made without sufficient knowledge, information, or expertise on the subject matter.

   1 more example

   Again, to invoke to its fullest extent against the bankrupt the legal presumption that he knows the law would in cases of fraudulent conveyances without secret trust make him stake his right to a discharge upon his uneducated guess as to whether a suit by his trustee would result in actually bringing this former property of his assets into his present estate in bankruptcy - a problem difficult for even lawyers to decide.

   1900, Austin B. Griffin, Fletcher A. Blanchard, Harold Jay Hinman, James Webster Eaton, John Thomas Cook, Mark L. Whitney, Melvin Thomas Bender, William Miller Collier (editors), American Bankruptcy Reports, Annotated ... Reporting the Bankruptcy Decisions and Opinions in the United States, of the Federal Courts, States Courts, and Referees in Bankruptcy, Volume 4, page 392

   Antonyms: educated guess