unbounded

adjective

I retained my unbounded enthusiasm for work:

unlimited, boundless, limitless, without limit, illimitable;

unrestrained, unrestricted, unconditional, unconstrained, uncontrolled, unchecked, unbridled;

untold, vast, immense, cosmic;

immeasurable, measureless, inestimable;

endless, unending, never-ending, interminable, everlasting, infinite, inexhaustible, unflagging;

absolute, total, full, utter;

informal with no holds barred.

▷antonyms limited, restricted.

unbounded Oxford Dictionary of English