Hallucination and Speculation

Hallucination

Hallucination noun - A conception or image created by the imagination and having no objective reality.

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Speculation and hallucination are semantically related. In some cases you can use "Speculation" instead a noun "Hallucination".

Speculation noun - A risky undertaking.

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Hallucination and speculation are semantically related. Sometimes you can use "Hallucination" instead a noun "Speculation".

pure	pure hallucination	pure speculation
common	common hallucination	common speculation
brief	brief hallucination	brief speculation
heavy	heavy hallucination	heavy speculation
Other adjectives: massive, intense, bad, early, persistent, mere, further, random, bizarre, last, paranoid.

Although the author hinted that the Afterlife doesn't exist in the Death Note mythos, there are still speculation that it wasn't Light's hallucination but L actually staring at him supernaturally.

Source: Maybe Magic, Maybe Mundane
That particular instance might be forgivable, though, on account of the Majorca part simply being Pavel's speculation; the pilots in the hallucination don't mention where they were coming from.

Source: Video Game / Metro: Last Light

Cite this Source

Speculation and Hallucination. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/hallucination/speculation

Hallucination & Speculation. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/hallucination/speculation>.

Speculation or Hallucination. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/hallucination/speculation.

Google Ngram Viewer shows how "hallucination" and "speculation" have occurred on timeline