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guesswork

American  
[ges-wurk] / ˈgɛsˌwɜrk /

noun

  1. work or procedure based on or consisting of the making of guesses or conjectures.

guesswork British  
/ ˈɡɛsˌwɜːk /

noun

  1. a set of conclusions, estimates, etc, arrived at by guessing

  2. the process of making guesses

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of guesswork

First recorded in 1715–25; guess + work

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.