What does "conditional" mean?

Conditional: (Gram. & Logic) Expressing a condition or supposition; as, a conditional word, mode, or tense. A conditional proposition is one which asserts the dependence of one categorical proposition on another. Whately. The words hypothetical and conditional may be . . . used synonymously. J. S. Mill.

Additional senses

  1. 2.A limitation. [Obs.] Bacon.
  2. 3.A conditional word, mode, or proposition. Disjunctives may be turned into conditionals. L. H. Atwater.

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