unguessable

unguessable adjective: not capable of being guessed.

Adjective

unguessable (comparative more unguessable, superlative most unguessable)

Not capable of being guessed.
- Never was even washerwoman more untidy. A cap all rags, from which the hair came straggling in elf-locks over a face which generally looked red-hot, surmounted by an old bonnet, originally black, now rusty, and so twisted into crooks and bends that its pristine shape was unguessable […]1828, Mary Russell Mitford, “The Fisherman in his Married State”, in Our Village, London: G.B. Whittaker, page 278
- What it was most impossible to get rid of was the cruel idea that, whatever I had seen, Miles and Flora saw more—things terrible and unguessable and that sprang from dreadful passages of intercourse in the past.1898, Henry James, The Turn of the Screw, in The Two Magics, London: Heinemann, Chapter 13, p. 101

A woman of unguessable age, wearing lots of black clothes, snatched the child away […]1965, Muriel Spark, The Mandelbaum Gate, London: Macmillan, Part One, Chapter 1:
These magic words look secret and unguessable, but in fact they are widely known.2001, Simson Garfinkel, Gene Spafford, Web Security, Privacy and Commerce:

comparative	more unguessable
superlative	most unguessable

From un- + guessable.

What does unguessable mean?: Unguessable means not capable of being guessed.
How do you use unguessable in a sentence?: A woman of unguessable age, wearing lots of black clothes, snatched the child away […]
What part of speech is unguessable?: Unguessable is an adjective.

Adapted from Wiktionary: unguessable (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Cite this entry: “unguessable.” Word.ws, https://word.ws/unguessable. Based on Wiktionary, CC BY-SA 4.0.