mercurial

USAGE SUMMARY

The phrase "mercurial" is correct and usable in written English.
It can be used to describe someone or something that is subject to sudden or unpredictable changes in mood or behavior. Example: "Her mercurial temperament made it difficult for her friends to know how she would react in any given situation."

✓ Grammatically correct

News & Media

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

He hasn't been to Villa Bianca for two years, and the last time was at the invitation of Alan Yentob (who was making a film about Davies's mercurial and often unsung gift and influence).

The Guardian - Music

In Swann's estimation Pietersen was "never the right man to captain England" – a position the mercurial batsman held only fleetingly before he and the coach Peter Moores both lost their jobs at the start of 2009.

The Guardian - Sport

He was a whirlwind of a person, bright, mercurial, great fun.

The Guardian - Film

The mercurial Russian had just upset Pete Sampras for the 2000 US Open title when he joined Letterman to discuss the merits of vodka for breakfast and Anna Kournikova's Grand Slam prospects.

The Guardian - Sport

Critics agreed Gehry's deconstructed meringue of sweeping metal, which opened in 1997, was a work of "mercurial brilliance".

The Guardian

I had done the production in the West End with Mark Rylance, so I was looking for someone who could match that same mercurial brilliance; something that wouldn't be just a piece of bravura acting.

The Guardian - Film

The brilliantly mercurial Retrograde, along with all the songs here, were good enough to reverse a retrograde Mercury.

The Guardian - Music

And even Sadat's fans grew to fear his increasingly mercurial temper and were relieved by his exit.

The Economist

For most of the past few years he has been fighting for supremacy not with Mr Milosevic but with other Serb opposition leaders, notably the mercurial Vuk Draskovic.

The Economist

That is no doubt helped by the fact that its corporate biography is so closely bound up with the mercurial Mr Jobs, a rare showman in his industry.

The Economist

Meanwhile, a mercurial newspaperman appears to be a friend and a socialist sympathiser, but he soon changes tack, hinting that he knows too much.

The Economist

Expert writing Tips

Best practice

When describing a person as "mercurial", provide specific examples of their unpredictable behavior to strengthen your point.

Common error

Avoid using "mercurial" when you simply mean someone is enthusiastic or lively; "mercurial" implies a more drastic and unsettling level of changeability.

Linguistic Context

"Mercurial" functions primarily as an adjective, modifying nouns to describe a quality of being subject to sudden or unpredictable changes. Ludwig examples show it describing people, politics, and even car prices. As Ludwig AI says, "mercurial" is correct and usable in written English.

Expression frequency: Very common

Frequent in

News & Media

78%

Formal & Business

12%

Science

5%

Less common in

Encyclopedias

2%

Wiki

1%

Reference

1%

Ludwig's WRAP-UP

In summary, "mercurial" is an adjective used to describe something or someone prone to sudden and unpredictable changes. As Ludwig AI confirms, the term is correct and commonly used. Its connotations lean toward instability and rapid fluctuation, often implying a lack of consistency. While appropriate for neutral and professional contexts, it is most often found in news and media. Related terms include "volatile", "fickle", and "capricious", each carrying subtly different shades of meaning. Remember to use "mercurial" when you want to convey a sense of rapid, unpredictable changes, backing up your usage with specific examples.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

volatile

Implies a tendency to erupt or change suddenly and violently.

fickle

Suggests a light and inconsistent changeability, often in affections or loyalty.

capricious

Highlights impulsiveness and unpredictability driven by whims or fancies.

erratic

Focuses on irregularity and inconsistency in behavior or movement.

unpredictable

Emphasizes the inability to foresee or anticipate someone's actions or behavior.

mutable

Highlights a proneness to change, focusing on the capacity or tendency to be altered.

changeable

Indicates a tendency to vary or alternate, often in mood or weather.

temperamental

Refers to a tendency to have strong or erratic moods.

flighty

Suggests irresponsibility and a lack of seriousness, with a tendency to change interests.

whimsical

Conveys a sense of playfulness and unpredictability, often in a charming way.

FAQs

How can I effectively use "mercurial" in a sentence?

Use "mercurial" to describe someone or something prone to sudden and unpredictable changes. For example: "The artist's "mercurial temperament" made collaborating with him challenging".

What are some alternatives to "mercurial"?

Depending on the context, alternatives to "mercurial" include "volatile", "fickle", or "capricious".

Is it correct to use "mercurial" to describe weather?

Yes, "mercurial" can describe weather that changes rapidly and unpredictably. For example: "The "mercurial weather" made planning the outdoor event difficult".

What's the difference between "mercurial" and "erratic"?

"Mercurial" implies quick and unpredictable changes in mood or character, while "erratic" suggests irregular or unpredictable behavior or movement.