Standard Lemma guide

dementedly

adv · 2 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

adv

Meaning 1

In a demented manner.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adverb

Meaning 2

in an insane manner

Definition source: Princeton WordNet 3.0

Examples

  • she behaved insanely
  • he behaves crazily when he is off his medication
  • the witch cackled madly
  • screaming dementedly

Meaning relationships

Synonyms: insanely, crazily, madly

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *de Proto-Indo-European *-h1 Proto-Indo-European *déh1 Proto-Italic *dē Latin dē Latin dē- Proto-Indo-European *men- Proto-Indo-European *-tis Proto-Indo-European *méntis Proto-Italic *mentis Latin mēns Latin dēmēns Proto-Indo-European *-h2 Proto-Indo-European *-éh2 Proto-Indo-European *-yéti Proto-Indo-European *-eh2yéti Proto-Indo-European *-h2tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Vulgar Latin dēmentōder. English dement Old English -ed ▲ Proto-Indo-European *-éh2 Proto-Indo-European *-tós Proto-Indo-European *-eh2tos Proto-Germanic *-ōdaz Old English -od Middle English -ed English -ed English demented Middle English -ly English -ly English dementedly From demented + -ly.

Across languages

Translations

1 source translations are retained for this English entry.

  • Polish: bezrozumnie — Translations