Standard Lemma guide

symmetric

adj · 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.

  • Canada, General-American, Received-Pronunciation: /sɪˈmɛt.ɹɪk/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • New-Jersey: Recorded audio is listed in the source snapshot.
  • Australian: /sɪˈmet.ɹɪk/
  • CMU ARPABET: S AH0 M EH1 T R IH0 K Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Synonym of symmetrical

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: symmetrical

Antonyms: none provided

2

adj

Meaning 2

Of a relation R on a set S, such that xRy if and only if yRx for all members x and y of S (that is, if the relation holds between any element and a second, it also holds between the second and the first).

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences, set-theory

Examples

  • "Is a sibling of" is a symmetric relation.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Using the same key (or keys that are trivially related) for both encryption and decryption.

Definition source: English Wiktionary via Wiktextract

Topics: computing, cryptography, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adjective

Meaning 4

having similarity in size, shape, and relative position of corresponding parts

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: symmetrical

Antonyms: none provided

History

Etymology

From symmetry + -ic, from Latin symmetria, from Ancient Greek συμμετρία (summetría).

Across languages

Translations

2 source translations are retained for this English entry.

  • French: symétrique — of a relation R on a set S, such that xRy if and only if yRx for all members x and y of S
  • Tagalog: parinayo — of a relation R on a set S, such that xRy if and only if yRx for all members x and y of S
Real reading context

symmetric in complete knowledge articles