sumless

CIDE DICTIONARY

sumless, a. 

 Not to be summed up or computed; so great that the amount can not be ascertained; incalculable; inestimable.  Pope.  [1913 Webster]

ROGET THESAURUS

sumless

Infinity

N infinity, infinitude, infiniteness, perpetuity, boundlessness, infinite, immense, numberless, countless, sumless, measureless, innumerable, immeasurable, incalculable, illimitable, inexhaustible, interminable, unfathomable, unapproachable, exhaustless, indefinite, without number, without measure, without limit, without end, incomprehensible, limitless, endless, boundless, termless, untold, unnumbered, unmeasured, unbounded, unlimited, illimited, perpetual, infinitely, ad infinitum, as boundless as the sea.