Standard Lemma guide

supercool

adj · verb · 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

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.

  • so͞o′pər-ko͞ol′
  • Received-Pronunciation: /ˈsuː.pəˌkuːl/
  • Canada, General-American: /ˈsu.pəɹˌkul/
  • US: Recorded audio is listed in the source snapshot.
  • Australian: /ˈsʉː.pəˌkʉːl/
  • New-Zealand: /ˈsʉː.pɐˌkʉːl/
  • Scotland: /ˈsʉ.pəɹˌkʉl/
  • India: /ˈsuː.pɜrˌkuːl/
  • CMU ARPABET: S UW2 P ER0 K UW1 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Very cool; thoroughly excellent, relaxed, or fashionable.

Definition source: English Wiktionary via Wiktextract

Usage: informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Synonym of supercooled

Definition source: English Wiktionary via Wiktextract

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: supercooled

Antonyms: none provided

3

verb

Meaning 3

To cool a material below its transition temperature without that transition occurring.

Definition source: English Wiktionary via Wiktextract

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: undercool

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *úp Proto-Indo-European *-er Proto-Indo-European *upér Proto-Italic *super Latin super Latin super-lbor. English super- English cool English supercool From super- + cool.

Across languages

Translations

3 source translations are retained for this English entry.

  • Dutch: supercool — very cool
  • Dutch: onderkoelen — to cool a material below its transition temperature without that transition occurring
  • Welsh: goroeri — to cool a material below its transition temperature without that transition occurring