Fantastic
Fantastic adjective - Too extraordinary or improbable to believe.
Usage example: concocted some fantastic story to try to explain why they had returned home so late
Unconceivable and fantastic are semantically related. In some cases you can use "Unconceivable" instead an adjective "Fantastic".
Unconceivable
Unconceivable adjective - Too extraordinary or improbable to believe.
Usage example: it's unconceivable that a once-promising actor could end up this way
Fantastic and unconceivable are semantically related. Sometimes you can use "Fantastic" instead an adjective "Unconceivable".
Mutual synonyms
Related pairs
- singular and fantastic
- singular and unconceivable
- outlandish and fantastic
- outlandish and unconceivable
- implausible and fantastic
- implausible and unconceivable
- extraordinary and fantastic
- extraordinary and unconceivable
- incredible and fantastic
- incredible and unconceivable
- unbelievable and fantastic
- unbelievable and unconceivable
- improbable and fantastic
- improbable and unconceivable
Cite this Source
Unconceivable and Fantastic. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/fantastic/unconceivable
Fantastic & Unconceivable. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/fantastic/unconceivable>.
Unconceivable or Fantastic. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/fantastic/unconceivable.
Google Ngram Viewer shows how "fantastic" and "unconceivable" have occurred on timeline