Phrase guide

sui generis

adj · adv · noun · 4 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.

  • Received-Pronunciation: /ˌs(j)uː.aɪ ˈd͡ʒɛn.ə.ɹɪs/
  • Received-Pronunciation: /ˌsuː.i ˈɡɛn.ə.ɹɪs/
  • Received-Pronunciation: /ˌsuː.i ˈd͡ʒɛn.ə.ɹɪs/
  • US: Recorded audio is listed in the source snapshot.

1

adj

Meaning 1

In a class of its own; one of a kind.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: law

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: one of a kind, unique, original

Antonyms: none provided

2

adv

Meaning 2

By itself; of its own.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable, rare

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: per se

Antonyms: none provided

3

noun

Meaning 3

Something of its own kind; a thing apart.

Definition source: English Wiktionary via Wiktextract

Topics: law

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adjective satellite

Meaning 4

constituting a class of its own; unique

Definition source: Princeton WordNet 3.0

Examples

  • a history book sui generis
  • sui generis works like Mary Chestnut's Civil War diary

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Borrowed from Latin suī generis (literally “of its own kind/class”).

Across languages

Translations

14 source translations are retained for this English entry.

  • Dutch: bijzonder — in a class of its own
  • Dutch: enig in zijn soort — in a class of its own
  • Esperanto: siaspeca — in a class of its own
  • German: sui generis — in a class of its own
  • German: eigener Art — in a class of its own
  • Greek: ιδιόρρυθμος (idiórrythmos) — in a class of its own
  • Hungarian: sajátos — in a class of its own
  • Hungarian: sajátságos — in a class of its own
  • Icelandic: sér á báti — in a class of its own
  • Icelandic: á ekki sinn líka — in a class of its own
  • Polish: sui generis — in a class of its own
  • Turkish: nevi şahsına münhasır — in a class of its own
  • French: tout seul — by itself
  • Polish: sui generis — by itself