UNDEFINABLE Synonyms: 74 Similar and Opposite Words

undefinable

adjective

Definition of undefinable

as in undefined

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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 undefinable Sports cars are famously undefinable, encompassing a broad array of roadsters, four-door cars, coupes, grand tourers, supercars, and even some straight-up race cars. — Robert Ross, Robb Report, 28 Oct. 2025 Making a case for the undefinable quality of camp, Doonan asks what do Grace Jones, Benjamin Disraeli, Salvador Dalí, K-pop and a giant art nouveau vase covered in fairies and stuffed with peacock feathers have in common. — Rosemary Feitelberg, Footwear News, 23 July 2025 The streets are dotted with workers in hazmat suits doing undefinable tasks and the stores are rundown. — Esther Zuckerman, IndieWire, 11 Mar. 2025 England’s precise positions down that side were slightly undefinable, which means the formation question is slightly redundant. — Michael Cox, The Athletic, 7 July 2024 See All Example Sentences for undefinable

Recent Examples of Synonyms for undefinable

Adjective

Crowds in an anachronistic fashion mashup of 1950s fedoras, 1940s newsboy caps, and 1960s pillbox hats celebrate some undefined New Year’s Eve of yore.

— Justin Davidson, Curbed, 1 Oct. 2026
How a spouse chooses to inhabit a highly visible but largely undefined role is visually articulated through their fashion.

— Anna Cafolla, Vogue, 25 Sep. 2026

Definition of undefined

Adjective

Cognitive concentration presents an even greater challenge because adverse changes can go unseen for an indeterminate amount of time.

— Swati Deepak Kumar, Forbes.com, 6 Oct. 2026
In the case of tomatoes, this is true with indeterminate varieties, and less so with determinate varieties that won’t continue growing and producing after harvesting.

— Amy Brightfield, Better Homes & Gardens, 20 July 2026

Definition of indeterminate

Adjective

Yet cycling’s code of ethics is both large and indistinct; the scale of Pogačar’s dominance threatens its traditions.

— Jacob Whitehead, New York Times, 26 July 2026
There, a holiday somewhere hot and indistinct, the only clear memory compressed into the feeling of rough grains of sand studding her feet.

— Literary Hub, Literary Hub, 13 July 2026

Definition of indistinct

Adjective

Exactly how far south the aurora might appear remains uncertain and depends on how the incoming CMEs interact with Earth's magnetic field.

— Daisy Dobrijevic, Space.com, 8 Oct. 2026
While companies often look to make supply-chain adjustments in the face of tariffs, that really hasn’t happened because the trade landscape is too uncertain to make long-term adjustments.

— Sasha Rogelberg, Fortune, 7 Oct. 2026

Definition of uncertain

Adjective

Riverside Fire Chief Greg White told The Times that the investigation into the cause of the fire is ongoing, and the cause remains undetermined.

— Los Angeles Times, Los Angeles Times, 24 Sep. 2026
During the incident, the suspects allegedly stole the clerk’s cellular phone, watch and an undetermined amount of cash, police said.

— Staff Report, Hartford Courant, 23 Sep. 2026

Definition of undetermined

Adjective

Had Thursday gone differently, the present and future may have been indistinguishable.

— Brian Hamilton, New York Times, 2 Oct. 2026
Thus the Marlowe played by Mitchum in the 1978 remake of The Big Sleep seems like an entirely different person from the original played by Bogart in 1946, despite their almost indistinguishable stories.

— Harmon Siegel, Artforum, 1 Oct. 2026

Definition of indistinguishable

Adjective

Keeping her husband happy yet oblivious—managing his baby fever with staged fake miscarriages—only goes so far when Martha begins suffering an inexplicable illness that culminates in an impossible pregnancy.

— Literary Hub, Literary Hub, 1 Oct. 2026
Remedy games encourage a kind of obsession and fascination from players, not just with inexplicable lore but with thick atmosphere.

— Jordan Minor, PC Magazine, 18 Sep. 2026

Definition of inexplicable

Browse Nearby Words

undefiled

undefinable

undefined

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“Undefinable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undefinable. Accessed 9 Oct. 2026.

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Synonyms of undefinable

adjective

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