cool-headed

adj

"cool-headed" is a 10-letter English headword indexed on PlainSpell.

The verdict

“cool-headed” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Calm and imperturbable, especially under pressure.

Corpus desk

Index EN-cool-headed · cool-headed · English

cool-headed · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "C" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for cool-headed
PropertyValue
Headwordcool-headed
LanguageEnglish
Part of speechAdjective
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “cool-headed” in English

cool-headedranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

cool-headed is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Calm and imperturbable, especially under pressure.".

Zero misspellings are on record for cool-headed in our index, a sign its spelling follows regular English conventions. This headword has no recorded confusable partner, a sign it's visually distinctive enough not to be mixed up with another word.

Our source data has no etymology on file for this entry, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is cool-headed, spelled C-O-O-L---H-E-A-D-E-D.

Definition

  1. 1
    Calm and imperturbable, especially under pressure.

Recorded use

Wiktionary example

These source excerpts show how cool-headed appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. The best headteachers are like submarine captains – cool-headed, astute decision-makers – who trust their colleagues and surroundings to indicate where their ship is headed.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "cool-headed"?
"cool-headed" is spelled C-O-O-L---H-E-A-D-E-D.
What does "cool-headed" mean?
As an adjective, "cool-headed" means: Calm and imperturbable, especially under pressure.
What language does "cool-headed" come from?
"cool-headed" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list