Past tense of hallucinate
regular verb
The past tense of hallucinate is hallucinated. The past participle is also hallucinated.
Forms of hallucinate
| Base form (V1) | hallucinate /həˈl(j)uːsɪneɪt/ |
|---|---|
| Past tense (V2) | hallucinated |
| Past participle (V3) | hallucinated |
| Present participle | hallucinating |
| Third person singular | hallucinates |
Hallucinated in a sentence
- In case you were wondering, the yahoo url above doesn’t actually exist, the model just hallucinated it.2015 May 21, Andrej Karpathy, “The Unreasonable Effectiveness of Recurrent Neural Networks”, in Andrej Karpathy blog
- Rankin sanctioned Ayala $3,000 and kicked him off the lawsuit after the lawyer admitted incorporating the hallucinated AI-generated cases in the brief.2025 February 10, Debra Cassens Weiss, “No. 42 law firm by head count sanctioned over fake case citations generated by AI”, in ABA Journal...
- "Slopsquatting," where attackers create malicious software packages using names AI models have already hallucinated into existence, is already a thing.2026 January 22, Jonny Evans, “Jamf has a warning for macOS vibe coders”, in Computerworld, via EBSCOhost, →ISSN. From the entry slopsquatting
- Oases, or distant smoky blurs of saksaul trees, appeared like moments of remission in lives of misfortune—rumored, hallucinated, prayed for, not always where they were supposed to be.2006, Thomas Pynchon, Against the Day, Vintage, published 2007, pages 844–5. From the entry saksaul
- A Craftsman that bohemians had painted purple and orange hallucinated next to a Miss Havisham–esque country where shredded Fourth of July decorations were still hanging around the doorway.2006, Deanna Kizis, “Closing Costs”, in Finishing Touches, New York, N.Y.; Boston, Mass.: Warner Books, →ISBN, pages 155–156. From the entry Miss Havisham–esque
Meaning of hallucinate
- verb To seem to perceive things (with one or more of one's senses) which are not really present; to have visions; to experience a hallucination.
- verb To produce information that is not supported by the model's training data.
Questions about the past tense of hallucinate
- What is the past tense of hallucinate?
- The past tense of hallucinate is hallucinated.
- What is the past participle of hallucinate?
- The past participle of hallucinate is hallucinated.
- Is hallucinate a regular or irregular verb?
- Hallucinate is a regular verb: its past tense adds -d.
Source and license
Adapted from Wiktionary: hallucinate (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.
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Cite this page: “Past tense of hallucinate.” Word.ws, https://word.ws/past-tense/hallucinate. Based on Wiktionary, CC BY-SA 4.0.