1.Containing, implying, or depending on, a condition or conditions; not absolute; made or granted on certain terms; as, a conditional promise. "Every covenant of God with man... may justly be made (as in fact it is made) with this conditional punishment annexed and declared."
2.(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." "The words hypothetical and conditional may be... used synonymously."