Something irreducible is as simple, basic, or straightforward as it possibly can be.

How a certain person grows up to be a genius is irreducible to the sum of her experiences and genetic material — it's not that simple. And you might say that you can't generalize about your favorite poet, that her brilliant work is irreducible to such simplification. Irreducible is a big word, but it basically just means "you can't make it any simpler than this."

Definitions of irreducible

adj incapable of being made smaller or simpler

“an irreducible minimum”
“an irreducible formula”
“an irreducible hernia”
capable of being reduced

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