Standard Lemma guide

diagnonsense

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

An inaccurate, incorrect, or nonsensical diagnosis, particularly in the field of psychiatry.

Definition source: English Wiktionary via Wiktextract

Usage: derogatory, humorous, uncountable

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *dwóh1 Proto-Indo-European *dwísder. Ancient Greek διά (diá) Ancient Greek δια- (dia-) Proto-Indo-European *ǵneh3- Proto-Indo-European *-sḱéti Proto-Indo-European *ǵn̥h3sḱétider. Proto-Hellenic *gignṓskō Ancient Greek γῐγνώσκω (gĭgnṓskō) Ancient Greek δῐαγῐγνώσκω (dĭagĭgnṓskō) Proto-Indo-European *-tis Ancient Greek -τις (-tis) Ancient Greek -σῐς (-sĭs) Ancient Greek δῐᾰ́γνωσῐς (dĭắgnōsĭs)der. Latin diagnōsisder. English diagnosis Proto-Indo-European *né Proto-Germanic *ne Proto-Indo-European *ís? Proto-Indo-European *h1óynos Proto-Germanic *ainaz Proto-Germanic *nainaz Proto-West Germanic *nain Old English nān Middle English non ▲ Old English nān Old English nān- Middle English non- English non- Proto-Indo-European *sent-der. Proto-Italic *sentiō Latin sentiō Proto-Indo-European *-tus Proto-Italic *-tus Latin -tus Latin sēnsusbor. Proto-Germanic *sinnaz Frankish *sinnbor. Vulgar Latin *sennus Old French sensbor. Middle English sense English sense English nonsense blend English diagnonsense Blend of diagnosis + nonsense.