Umpteen (determiner / adjective) — عدد كبير: Informal: very many, an indefinitely large number. Below are 7 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Innumerable; infinite; numberless; immeasurable; unlimited; boundless; vast; uncountable
Too many to be counted.
Many; great in number.
manydozens ofscores oflots of