Highly unlikely
Unthinkable and highly unlikely are semantically related In some cases you can use "Unthinkable" instead an adjective phrase "Highly unlikely".
Unthinkable
Unthinkable adjective - Too extraordinary or improbable to believe.
Highly unlikely and unthinkable are semantically related in unimaginable topic. You can use "Highly unlikely" instead an adjective "Unthinkable".
Nearby Word: unthinking
Mutual synonyms
Related pairs
- dubious and highly unlikely
- dubious and unthinkable
- doubtful and highly unlikely
- doubtful and unthinkable
- outrageous and highly unlikely
- outrageous and unthinkable
- implausible and highly unlikely
- implausible and unthinkable
- incredible and highly unlikely
- incredible and unthinkable
- unbelievable and highly unlikely
- unbelievable and unthinkable
- illogical and highly unlikely
- illogical and unthinkable
Cite this Source
Unthinkable and Highly unlikely. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/highly_unlikely/unthinkable
Highly unlikely & Unthinkable. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/highly_unlikely/unthinkable>.
Unthinkable or Highly unlikely. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/highly_unlikely/unthinkable.
Google Ngram Viewer shows how "highly unlikely" and "unthinkable" have occurred on timeline