conditional /kənˈdɪʃ.ə.nəl/noun 5adjective 3forms 1 noun5 •A conditional sentence; a statement that depends on a condition being true or false. •A statement that one sentence is true if another is."A implies B" is a conditional. •The conditional mood. •An instruction that branches depending on the truth of a condition at that point.if and while are conditionals in some programming languages. •A condition (a limitation or restriction). adjective3 •Limited by a condition.I made my son a conditional promise: I would buy him a bike if he kept his room tidy. •Stating that one sentence is true if another is true."A implies B" is a conditional statement. •Expressing a condition or supposition. formsconditionals