is invariable

USAGE SUMMARY

The phrase "is invariable" is correct and usable in written English.
It can be used to describe something that does not change or is constant in nature. Example: "In mathematics, the value of pi is invariable, remaining the same regardless of the circumstances."

✓ Grammatically correct

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

52 human-written examples

The crowds are enthusiastic, and the message is invariable: If you breathe, here's your man.

The New York Times

Although the word stereotyped is used in the above definition, this does not mean that the reflex response is invariable and unchangeable.

Encyclopedia Britannica

The tragic sequence may create the impression that an inflight emergency is invariable fatal and therefore paying attention to the safety briefing is a waste of time.

Independent

While deaths from rabies in humans are rare, the virus, which affects the central nervous system, is invariable fatal to those who do not seek treatment before symptoms appear.

The New York Times

Their individual sediment layers can be as thin as 0.5 millimetre (0.02 inch) or as thick as 2.5 centimetres (1 inch), but the alternation of a siliceous band and an iron mineral band is invariable.

Encyclopedia Britannica

A Chinese word is invariable in form (i.e., it has no inflectional markers or markers to indicate parts of speech) and, within the range allowed by its intrinsic meaning, can serve as any part of speech.

Encyclopedia Britannica

Human-verified similar examples from authoritative sources

Similar Expressions

8 human-written examples

Adverbs, prepositions, conjunctions, and interjections are invariable.

Encyclopedia Britannica

This confusion was invariable, and also basically the point.

The New York Times

"Writer's tend to be invariable pack rats," he said.

The New York Times

When α=1, the ranges of these sub-histograms are invariable.

EURASIP Journal on Image and Video Processing

One possibility is that what constitutes health is not invariable; thus the account of health would not be invariable.

SEP

Expert writing Tips

Best practice

Use "is invariable" when you want to emphasize that a specific parameter, condition, or characteristic remains constant regardless of external factors or changes in other variables. This phrase is particularly useful in scientific and technical writing.

Common error

Avoid using "is invariable" when you mean "invariably", which is an adverb meaning 'always'. "Is invariable" describes a state of being, while "invariably" describes how an action occurs.

Linguistic Context

The phrase "is invariable" functions as a predicate adjective, describing a noun or pronoun by ascribing the property of being unchangeable. Ludwig examples show it modifies terms across diverse contexts, from scientific parameters to abstract concepts.

Expression frequency: Very common

Frequent in

Science

78%

News & Media

13%

Encyclopedias

9%

Less common in

Ludwig's WRAP-UP

The phrase "is invariable" is a powerful tool for emphasizing the unchanging nature of something, primarily used in formal and scientific contexts. As Ludwig AI confirms, it functions as a predicate adjective, highlighting the stability or immutability of a subject. While alternatives like "remains constant" or "does not change" exist, "is invariable" offers a more precise and formal tone. Remember to avoid confusing it with the adverb "invariably". By understanding its grammatical function and appropriate context, you can effectively use "is invariable" to enhance clarity and precision in your writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

does not change

A more direct and simple way of expressing the absence of alteration.

remains unchanged

Emphasizes that something has not been altered or modified.

remains constant

Focuses on the idea of staying the same over time.

is unvarying

A more formal synonym emphasizing the absence of variation.

stays consistent

Highlights the uniformity or lack of contradiction in something.

is consistent

Indicates that something adheres to the same principles or standards throughout.

is fixed

Suggests that something is set and cannot be moved or altered.

is immutable

Implies that something cannot be changed, often due to a fundamental law or principle.

is uniform

Highlights the consistency and sameness of something across its entirety.

is stable

Suggests that something is resistant to change or disruption.

FAQs

How can I use "is invariable" in a sentence?

The phrase "is invariable" is used to describe something that remains constant or unchanging. For example, "The speed of light in a vacuum "is invariable"."

What are some alternatives to saying "is invariable"?

You can use alternatives like "remains constant", "stays consistent", or "does not change" depending on the specific context.

Is it correct to say "is invariably" instead of "is invariable"?

No, "is invariably" is not grammatically correct. "Invariable" is an adjective describing something that doesn't change, while "invariably" is an adverb meaning 'always' or 'without exception'. You would use "is invariable" to describe a state of being, and "invariably" to describe how an action occurs. For example: "Death "is invariable"" vs. "The sun invariably rises in the east".

What's the difference between "is invariable" and "is constant"?

While both phrases suggest a lack of change, "is invariable" often implies a more fundamental or inherent quality of being unchanging, whereas "is constant" can refer to something that is maintained at a specific level or value. Something that "is invariable" is inherently unchangeable, while something that "is constant" is actively kept that way.