Immediately; Instantly; forthwith; without delay. Trial instanter was had where a prisoner between attainder and execution pleaded that he was not the same who was attainted. When a party is ordered to plead instanter, he must plead the same day. The term is usually understood to mean within twenty-four hours. Rex v. Johnson, 6 East, 583; Smith v. Little. 53 111. App. 160; State v. Clevenger, 20 Mo. App. 627; Fentress v. State, 16 Tex. App. 83; Champlin v. Champlin, 2 Edw. Ch. (N. Y.) 329.