Standard Lemma guide

unreliability

noun · 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: AH2 N R IY0 L AY2 AH0 B IH1 L IH0 T IY0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

The quality of being unreliable.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

the trait of not being dependable or reliable

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: undependability, undependableness, unreliableness

Antonyms: reliability

Broader terms: irresponsibility, irresponsibleness

Narrower terms: instability, irreproducibility, fallibility

History

Etymology

Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Germanic *un- Proto-West Germanic *un- Old English un- Middle English un- English un- English reliability English unreliability From un- + reliability.

Across languages

Translations

10 source translations are retained for this English entry.

  • Czech: nespolehlivost — the quality of being unreliable
  • Finnish: epäluotettavuus — the quality of being unreliable
  • French: manque de sérieux — the quality of being unreliable
  • French: manque de fiabilité — the quality of being unreliable
  • German: Unzuverlässigkeit — the quality of being unreliable
  • Hungarian: megbízhatatlanság — the quality of being unreliable
  • Polish: awaryjność — the quality of being unreliable
  • Russian: ненадёжность (nenadjóžnostʹ) — the quality of being unreliable
  • Spanish: inseguridad — the quality of being unreliable
  • Ukrainian: ненаді́йність (nenadíjnistʹ) — the quality of being unreliable