Thoughts of an infinite being. limitless or endless in space, extent, or size; impossible to measure or calculate."the infinite mercy of God"synonyms: boundless, unbounded, unlimited, limitless, without limit, without end, never-ending, interminable, cosmic; Moremeasureless, immeasurable, fathomless, unfathomed, bottomless;extensive, vast"the universe is spatially infinite"countless, uncountable, inestimable, indeterminable, innumerable, numberless, immeasurable, incalculable, untold, very many;great, vast, enormous, immense, prodigious, multitudinous;