IMPERTURBABILITY Synonyms: 99 Similar and Opposite Words

Q: How is the word 'imperturbable' different from other adjectives like it?

Some common synonyms of imperturbable are collected , composed , cool , nonchalant , and unruffled . While all these words mean "free from agitation or excitement," imperturbable implies coolness or assurance even under severe provocation. // the speaker remained imperturbable despite the heckling

Q: In what contexts can 'collected' take the place of 'imperturbable'?

The words collected and imperturbable are synonyms, but do differ in nuance. Specifically, collected implies a concentration of mind that eliminates distractions especially in moments of crisis. // the nurse stayed calm and collected

Q: When is 'composed' a more appropriate choice than 'imperturbable'?

Although the words composed and imperturbable have much in common, composed implies freedom from agitation as a result of self-discipline or a sedate disposition. // the composed pianist gave a flawless concert

Q: When can 'cool' be used instead of 'imperturbable'?

In some situations, the words cool and imperturbable are roughly equivalent. However, cool may imply calmness, deliberateness, or dispassionateness. // kept a cool head

Q: When is it sensible to use 'nonchalant' instead of 'imperturbable'?

While in some cases nearly identical to imperturbable , nonchalant stresses an easy coolness of manner or casualness that suggests indifference or unconcern. // a nonchalant driver

Q: When could 'unruffled' be used to replace 'imperturbable'?

While the synonyms unruffled and imperturbable are close in meaning, unruffled suggests apparent serenity and poise in the face of setbacks or in the midst of excitement. // harried but unruffled

imperturbability 1 of 2

noun

Definition of imperturbability next

as in composure

evenness of emotions or temper his imperturbability in a crisis is legendary among hospital staffers

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Antonyms & Near Antonyms

imperturbable

2 of 2

adjective

ˌim-pər-ˈtər-bə-bəl

as in nonchalant

not easily panicked or upset the chef was absolutely imperturbable—even when the kitchen caught on fire

Synonyms & Similar Words

Antonyms & Near Antonyms

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How is the word imperturbable different from other adjectives like it?

Some common synonyms of imperturbable are collected, composed, cool, nonchalant, and unruffled. While all these words mean "free from agitation or excitement," imperturbable implies coolness or assurance even under severe provocation.

the speaker remained imperturbable despite the heckling

In what contexts can collected take the place of imperturbable?

The words collected and imperturbable are synonyms, but do differ in nuance. Specifically, collected implies a concentration of mind that eliminates distractions especially in moments of crisis.

the nurse stayed calm and collected

When is composed a more appropriate choice than imperturbable?

Although the words composed and imperturbable have much in common, composed implies freedom from agitation as a result of self-discipline or a sedate disposition.

the composed pianist gave a flawless concert

When can cool be used instead of imperturbable?

In some situations, the words cool and imperturbable are roughly equivalent. However, cool may imply calmness, deliberateness, or dispassionateness.

kept a cool head

When is it sensible to use nonchalant instead of imperturbable?

While in some cases nearly identical to imperturbable, nonchalant stresses an easy coolness of manner or casualness that suggests indifference or unconcern.

a nonchalant driver

When could unruffled be used to replace imperturbable?

While the synonyms unruffled and imperturbable are close in meaning, unruffled suggests apparent serenity and poise in the face of setbacks or in the midst of excitement.

harried but unruffled

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of imperturbability

Adjective

Both were introverts by nature and, for the most part, imperturbable on the court. —

Cindy Shmerler, New York Times, 24 May 2024 Susie Glass, the crime boss Eddie reports to, is essentially a carbon copy of Michelle Dockery’s Rosalind, from her cherry-red lips to her sky-high stilettos to her generally imperturbable air. —

Angie Han, The Hollywood Reporter, 26 Feb. 2024 From lipomas and cysts to keloids and tumors, Lee tackles them all with professionalism and a seemingly imperturbable gag reflex. —

Briana Richert, James Mercadante, EW.com, 19 Feb. 2024 The effect of this combination, a mash-up of urgency and complacency — imperturbable emergency? — is dreamlike and a bit maddening, perhaps like Cassandra shouting her warning to the gullible Trojans. —

Philip Kennicott, Washington Post, 3 Nov. 2023 See all Example Sentences for imperturbability

Recent Examples of Synonyms for imperturbability

Noun

Then Wood and Ross Colton completely lost their composure after Nils Höglander drew an obvious penalty on Colton against the grain late in the third period.

— Thomas Drance, The Athletic, 5 Feb. 2025
But the main reason scientists believe people should keep their composure is because there is a good chance 2024 YR4 will be reclassified down to Level 0 when observed in the future, the same outcome for 2004 VD17 and 99942 Apophis.

— Jack Knudson, Discover Magazine, 31 Jan. 2025

Definition of composure

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“Imperturbability.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/imperturbability. Accessed 9 Feb. 2025.

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Last Updated: 9 Feb 2025 - Updated example sentences

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Synonyms of imperturbability

noun

adjective

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