Possessed of, or characterized by, expedition, or efficiency and rapidity in action; performed with, or acting with, expedition; quick; having celerity; speedily; as, an expeditious march or messenger.
Prompt, Timesaving, Efficient
Ambitious, Auspicious, Capricious, Delicious, Factitious, Fictitious, Judicious, Malicious, Nutritious, Pernicious, Propitious, Seditious, Suspicious
Aloysius, Expeditious, Inauspicious, Injudicious, Repetitious, Superstitious, Surreptitious
Expeditious in Spanish is Expeditivo
Expeditious in Tagalog is Madali