Word.ws English Dictionary

seiso

seiso adjective: pure, proper, and wholesome, especially in the sense of being non-sexual.

Adjective

seiso (comparative more seiso, superlative most seiso)

  1. (VTuber fandom slang) Pure, proper, and wholesome, especially in the sense of being non-sexual.
    • I thought Pekora was a pure seiso girl. How could she retweet this?2020 July 31, @AlValence, Twitter
    • i’ve been streaming for a while and i’m pretty seiso. i don’t enjoy top/bottom jokes or being lewd in general although being slightly sexy is okay.2022 November 14, /u/yuviia, Reddit
    Antonyms:
    lewd

Antonyms of seiso

Forms of seiso

comparativemore seiso
superlativemost seiso

Origin of seiso

From Japanese 清(せい)楚(そ) (seiso, “clean, tidy”).

Questions about seiso

What does seiso mean?
Seiso means pure, proper, and wholesome, especially in the sense of being non-sexual.
What part of speech is seiso?
Seiso is an adjective.

Words near seiso in the dictionary

  1. seismotectonic
  2. seismotectonics
  3. seismotherapies
  4. seismotherapy
  5. seisms
  6. seiso
  7. seisonid
  8. seisonids
  9. seisor
  10. seisors
  11. seisure

Source and license

Adapted from Wiktionary: seiso (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “seiso.” Word.ws, https://word.ws/seiso. Based on Wiktionary, CC BY-SA 4.0.