formal
: too great, powerful, beautiful, etc., to be described or expressed
She felt ineffable [=inexpressible] joy at the sight of her children.
His paintings have an ineffable [=indescribable] beauty.
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“Ineffable.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/ineffable. Accessed 23 Jun. 2026.
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