Standard Lemma guide

post-quantum

adj · 3 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

adj

Meaning 1

Existing in the hypothetical time period after the development of powerful quantum computers.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Examples

  • As research continues on quantum computers, we are quickly approaching the post-quantum age.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Existing in the hypothetical time period after the development of powerful quantum computers.

Suitable for the post-quantum age; quantum-resistant.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Qualifier: computer security

Examples

  • Cryptographers are at work developing post-quantum algorithms for the future.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Beyond quantum physics.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable, rare

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From post- (“after, later”) + quantum.