Definition of guessing:
slam, going by dead reckoning, snapshot, injection, speculation, inference, guesswork, leaping to conclusions, presumption, going by guess and by God, surmisal, shooting, deduction, pellet, gibe, scene, imagination, surmise, guess, shot, assuming, postulating, dig, stroke, snap, shooter, fancy, conjecture, barb, blastoff, supposition, crack, taking for granted, positing, predisposition, dead-reckoning, shaft, stab, hypothesis, opinion, jibe.
calculating (part of speech: verb)
- supposing (part of speech: verb)
- "The Tempering", Charles Neville Buck.
- "The Heart of Unaga", Ridgwell Cullum.
- "Ronicky Doone", Max Brand.