Unlimited means without any limit or boundary. Its synonyms include boundless, endless, infinite, limitless, inexhaustible, immeasurable, bottomless, unbounded, countless, and perpetual. The word boundless describes something that has no limits or is immeasurable. Endless suggests that something goes on and on without any end. Infinite refers to something that is limitless or never-ending. Limitless suggests that a thing has no boundaries or restrictions. Inexhaustible refers to a source that never runs out or can't be used up. Immeasurable refers to something that is beyond measure, impossible to quantify, or indefinite. Bottomless suggests a depth that has no end. Unbounded refers to something that is unrestricted or unconfined. Countless implies that there are too many to count, while perpetual suggests that something continues without interruption.