conjectureсуществительное An opinion or conclusion formed on the basis of incomplete information. His conjecture about the outcome of the election was based on a few early polls.
A mathematical statement that is proposed as a true statement but has not been proven or disproven. The Riemann Hypothesis is a famous conjecture in mathematics that remains unproven.
The act or process of forming such an opinion or supposition; guesswork. Without substantial data, his explanation remained mere conjecture.