adv. Immediately; without delay; directly. Immediately, promptly, quickly with reasonable diligence. (Law) As soon as the thing required may be done by reasonable exertion confined to that object. When a thing is to be done forthwith, it seems that it must be performed as soon as by reasonable exertion, confined to that object, it may be done. This is the import of the term; it varies, of course, with every particular case.