multitudinous

Existing in multitudes or great numbers; very numerous; innumerable.

Comprising a large number of features or parts; manifold, multiple, myriad; also, having a large number of forms.

Of a sound: made by many people.

Of a body of water, the sea, etc.: huge, vast; also, having innumerable ripples.

Followed by with: crowded with many people or things.

Of or relating to the multitude (“common people; masses”).

Very fruitful or productive; prolific.