Multitudinous

kareileva

(of a body of water, the sea, etc.: having innumerable ripples)

lukuisa

(existing in multitudes or great numbers; very numerous — see also innumerable)

monilukuinen

(existing in multitudes or great numbers; very numerous — see also innumerable)

moninainen

(having a large number of forms)

moniääninen

(of a sound: made by many people)