How to use "a unthinkable"

What Does "a unthinkable" Mean?

• "a unthinkable" is grammatically incorrect. "Unthinkable" is an adjective meaning "inconceivable" or "difficult to imagine". The construction attempts to treat "unthinkable" as a noun.
• The meaning is not compositional because the phrase is ungrammatical. Intended meaning is usually something like "an unthinkable event/tragedy/situation".
• Register: The phrase itself is incorrect, so register is not applicable. However, the word "unthinkable" is neutral in register.

How to Use It

• Grammatical pattern: The intended pattern seems to be article + adjective + (implied) noun. The problem is that an adjective cannot function as a noun.
• Typical objects/complements: When used correctly, "unthinkable" would modify a noun, such as "unthinkable tragedy," "unthinkable act," or "unthinkable situation."
• The components cannot be separated because the phrase is not a valid construction.
• What sounds unnatural: Using "a" directly before an adjective without a noun is the primary error. Examples of what sounds unnatural: "a unthinkable," "a beautiful," "a difficult."

Real-World Examples

These examples are sourced from a unthinkable on Ludwig.guru.

"The loss of a child is an unbearable grief, the murder of a child an unthinkable atrocity." — The New Yorker

"This was an unthinkable, a testicle-withering sum." — The New Yorker

"In an unthinkable crisis, a bank's chief executive has to make a fast decision." — Harvard Business Review

"For the next year, Elaine and Heinz plunged into an unthinkable grief, an ache worthy of Job." — The New Yorker

"Division among Christians is a denial of Christ, an unthinkable distortion of the reality of the church." — Encyclopedia Britannica

Examples sourced from https://ludwig.guru/s/a+unthinkable

Similar Phrases and Alternatives

Phrase	Context
an unimaginable event	More grammatically correct and emphasizes the difficulty in conceiving the event.
an inconceivable situation	Focuses on the impossibility of the situation occurring.
an unthinkable tragedy	Highlights the tragic nature of the event.
an unspeakable horror	Emphasizes the shocking and appalling nature of the event.
a mind-boggling concept	Suitable when discussing ideas or concepts that are difficult to grasp.
an appalling act	Highlights the shockingly bad or horrific nature of the action.
an outrageous idea	Suitable when referring to a shocking or unacceptable suggestion or plan.

Common Mistakes

• Using "a" directly before an adjective like "unthinkable" without a noun is a common mistake. This is because adjectives modify nouns and need a noun to describe.
• A related error is using "a" before an adverb. Adverbs modify verbs, adjectives, or other adverbs, not nouns.
• The most common mistake is using the indefinite article "a" before an adjective when a noun is expected.

Quick-Reference Summary

Expression	Meaning	Grammatical Pattern	Register
a unthinkable	Grammatically incorrect; intended meaning: an unthinkable event/situation/etc.	Article + Adjective	N/A (incorrect)

FAQs

Can the parts of "a unthinkable" be separated, or must they stay together?

The phrase "a unthinkable" is grammatically incorrect, so the question of separability doesn't apply. "Unthinkable" is an adjective, and adjectives need to modify a noun. The correct usage would involve a noun following the adjective, such as "an unthinkable tragedy."

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What's the difference between "a unthinkable" and "an unthinkable event?"

"A unthinkable" is ungrammatical because the indefinite article "a" or "an" needs to be followed by a noun, not just an adjective. "An unthinkable event" is grammatically correct because "event" is a noun that is being modified by the adjective "unthinkable."

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I often use "a unthinkable" to describe something shocking. How can I correct this?

The most common mistake is using the indefinite article "a" before an adjective when a noun is expected. Instead of "a unthinkable," you should use a noun following the adjective, such as "an unthinkable act," "an unthinkable tragedy," or "an unthinkable situation." Alternatively, use a stronger adjective like "outrageous" or "appalling" before a suitable noun.