Deep
Deep adjective - Having an often intentionally veiled or uncertain meaning.
Usage example: one of those deep passages in the Bible that can be interpreted in any number of different ways
Questionable and deep are semantically related. In some cases you can use "Questionable" instead an adjective "Deep".
Questionable
Questionable adjective - Giving good reason for being doubted, questioned, or challenged.
Deep and questionable are semantically related. Sometimes you can use "Deep" instead an adjective "Questionable".
Mutual synonyms
Both words in one sentence
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In the Contra series, the player character dies from merely touching a pit past a certain point - say, knee-deep or so - making the lethality of said pits even more questionable.
Source: Bottomless Pits - Questionable Content: Two indie rock fans share an apartment, as well as an awkward romantic tension made impossible to realise due to some deep-seated psychological issues on her part.
Source: Embellished Webcomics - Maybe his motives are questionable, but still, he's a good person deep down.
Source: Chivalrous Pervert
Cite this Source
Questionable and Deep. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/deep/questionable
Deep & Questionable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/deep/questionable>.
Questionable or Deep. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/deep/questionable.
Google Ngram Viewer shows how "deep" and "questionable" have occurred on timeline