1) A lot of 2) Incalculable 3) Innumerable 4) Innumerous 5) Many 6) Multitudinous 7) Myriad 8) Numberless 9) Uncounted 10) Unnumberable 11) Unnumbered 12) Unnumerable 13) Untold 1) Endless 2) Immeasurable 3) Incalculable 4) Inestimable 5) Infinite 6) Innumerable 7) Innumerous 8) Many 9) Multitudinous 10) Myriad 11) Numberless 12) Numerous 13) Too numerous to be counted 14) Too numerous to count 15) Uncounted 16) Unnumberable 17) Unnumbered 18) Unnumerable 19) Untold 20) Without number 
• (a.) Incapable of being counted; not ascertainable; innumerable.
Count'less adjective Incapable of being counted; not ascertainable; innumerable. 
[adj] - too numerous to be counted
infinite adjective too numerous to be counted; `incalculable riches`; `countless hours`; `an infinite number of reasons`; `innumerable difficulties`; `the multitudinous seas`; `myriad stars`; `untold thousands`
too numerous to count; innumerable: the countless stars.