marvelousa.[OE. merveillous, OF. merveillos, F. Merveilleux. See Marvel, n.]1. Exciting wonder or surprise; astonishing; wonderful.()This is the Lord's doing; it is marvelous in our eyes. (Ps. cxiii. 23.)2. Partaking of the character of miracle, or supernatural power; incredible; so improbable as to defy belief.()The marvelous fable includes whatever is supernatural, and especially the machines of the gods. (Pope.)The marvelous, that which exceeds natural power, or is preternatural; that which is wonderful; -- opposed to the probable.()()