Synonyms for unthinkable
- adjective
Synonyms by meaning
Adjective
1. Inconceivable — that cannot be believed
inconceivable, unimaginable, impossible, unbelievable, incredible, unseeable
2. Unspeakable — extremely improper; extremely at odds with norms of expected behavior
Other
imponderable, inexcogitable dated
Definitions
- adj. 1
That cannot be believed.
Near-synonyms: unbelievable, incredible, inconceivable
- adj. 2
Extremely improper; extremely at odds with norms of expected behavior.
Near-synonyms: taboo, unspeakable, unutterable, inconceivable
Related words
- Word family
- unthinkability unthinkableness unthinkably
Example sentences
- impossible It'll be impossible to get a visa at short notice.
- unbelievable It's unbelievable that Tom supports that dictator.
- unimaginable Goulash without red paprika is unimaginable.
- inconceivable It is inconceivable to me that he would do such a thing.
- taboo That subject is taboo. We do not speak about it.
- unspeakable Police encountered a scene of unspeakable carnage.
Popularity over time
| Word | 1850 → 2019 | Trend |
|---|---|---|
| unthinkable | rising | |
| impossible | steady | |
| unbelievable | rising | |
| unimaginable | rising | |
| inconceivable | steady | |
| taboo | rising |
Use in printed books, per decade from 1850 to 2019.
By length
- 5 letters
- taboo2
- 9 letters
- unseeable
- 10 letters
- impossible4, incredible4
- 11 letters
- unspeakable4, unutterable
- 12 letters
- unbelievable5, unimaginable6, imponderable5
- 13 letters
- inconceivable5, inexcogitable
The small number after each word is its number of syllables (taboo2 = 2 syllables).
In other languages
- Français
- impensable
- Italiano
- impensabile
- Deutsch
- undenkbar