guesswork
noun
[ ˈɡɛswəːk ]
• the process or results of guessing.
• "answering this question will involve you in a certain amount of guesswork"
Similar:
guessing,
conjecture,
surmise,
supposition,
assumption,
presumption,
suspicion,
speculation,
hypothesizing,
theorizing,
prediction,
expectation,
approximations,
rough calculations,
feelings,
hunches,
guesstimates,
ballpark figures,