Nouns

(n)contingenta gathering of persons representative of some larger group“each nation sent a contingent of athletes to the Olympics”
(n)contingent, detaila temporary military unit“the peacekeeping force includes one British contingent”

Adjectives

(s)contingentpossible but not certain to occur“they had to plan for contingent expenses”
(s)contingent, contingent on, contingent upon, dependent on, dependant on, dependent upon, dependant upon, depending onbeing determined by conditions or circumstances that follow“arms sales contingent on the approval of Congress”
(s)contingentuncertain because of uncontrollable circumstances“the results of confession were not contingent, they were certain” (George Eliot)