Synonyms of countless

1 Syllable

heap, scads, pile, raft, stack, mess, peck, wad, mint, gobs, slew, much, loads

2 Syllables

jillion, mucho, umpteen, umteen, legions, legion, full-out, untold, many, endless, oodles, myriad, zillion

3 Syllables

uncounted, limitless, numberless

4 Syllables

unlimited, measureless, infinite, uncountable, unnumbered, innumerous

5 Syllables

thousand-and-one, uncalculable, self-perpetuating, incomputable, multitudinal, immeasurable, incalculable, illimitable, innumerable, unnumberable, multitudinous