Deep
Deep adjective - Being beyond one's powers to know, understand, or explain.
Usage example: a deep, dark secret that he took to his grave
Unintelligible and deep are semantically related. In some cases you can use "Unintelligible" instead an adjective "Deep".
Unintelligible
Unintelligible adjective - Impossible to understand.
Usage example: uttered only a string of unintelligible murmurs
Deep and unintelligible are semantically related. Sometimes you can use "Deep" instead an adjective "Unintelligible".
Nearby Word: unintelligibly
Mutual synonyms
Related pairs
- thick and deep
- thick and unintelligible
- complex and deep
- complex and unintelligible
- difficult and deep
- difficult and unintelligible
- abstruse and deep
- abstruse and unintelligible
- fathomless and deep
- fathomless and unintelligible
- unfathomable and deep
- unfathomable and unintelligible
- obscure and deep
- obscure and unintelligible
Both words in one sentence
- Ourobourous from Bravely Default is so evil that his deep voice is nearly unintelligible!
Source: Evil Sounds Deep - When we finally meet the Breen in Star Trek: Deep Space Nine, they speak in an unintelligible electronic buzzing.
Source: Intelligible Unintelligible - The producer claimed at one point that if the Dukes had truly authentic accents for that part of the Deep South, they'd be unintelligible to most of the television audience.
Cite this Source
Unintelligible and Deep. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/deep/unintelligible
Deep & Unintelligible. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/deep/unintelligible>.
Unintelligible or Deep. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/deep/unintelligible.
Google Ngram Viewer shows how "deep" and "unintelligible" have occurred on timeline