Spontaneously
Spontaneously adverb - In a spontaneous manner.
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Synonyms for Spontaneously
Without warning and spontaneously are semantically related. In some cases you can use "Without warning" instead an adverb "Spontaneously".
Nearby Words: spontaneous, spontaneity
Without warning
Spontaneously and without warning are semantically related. Sometimes you can use "Spontaneously" instead an adverb phrase "Without warning".
Mutual synonyms
Both terms in one sentence
- Worryingly enough, a Groin Attack can occur more or less spontaneously and without warning.
Source: Groin Attack / Real Life -
The rollercoaster car Sonic rides in Eggmanland, with spontaneously explodes without warning in midair.
Source: Video Game / Sonic Unleashed
Cite this Source
Without warning and Spontaneously. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/spontaneously/without_warning
Spontaneously & Without warning. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/spontaneously/without_warning>.
Without warning or Spontaneously. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/spontaneously/without_warning.
Google Ngram Viewer shows how "spontaneously" and "without warning" have occurred on timeline