agnoiology

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US/ˌæɡnɔɪˈɑlədʒi/

noun

The study of things of which cannot be known.

OriginAncient Greek -λογία →
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Meanings

nounagnoiology (uncountable)
  1. uncountableThe study of things of which cannot be known.

    […]and hence a reasoned and systematic ontology has remained until this day a desideratum in speculative science, because a reasoned and systematic agnoiology has never yet been projected.

    1875, James Frederick Ferrier, Institutes of Metaphysic, section 2, proposition 1

Origin

  1. Ancient Greek-λογία“knowledge”
  2. Englishagnoiology

From Ancient Greek ἄγνοια (ágnoia, “the state of not knowing or perceiving: ignorance, unawareness”) + -ology, from -o- + -logy, from Ancient Greek -λογία (-logía, “knowledge”). Coined by Scottish philosopher James Frederick Ferrier.

More words from Ancient Greek

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Cite this entry
APA

agnoiology. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/agnoiology

MLA

“agnoiology.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/agnoiology. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “agnoiology,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/agnoiology.

Source: agnoiology on Wiktionary, CC BY-SA 4.0.