Random
Random adjective - Lacking a definite plan, purpose, or pattern.
Spontaneous and random are semantically related. In some cases you can use "Spontaneous" instead an adjective "Random".
Spontaneous
Spontaneous adjective - Done instantly and without conscious thought or decision.
Usage example: hugging a crying child is simply a spontaneous reaction
Random and spontaneous are semantically related. Sometimes you can use "Random" instead an adjective "Spontaneous".
Nearby Words: spontaneity, spontaneously
Mutual synonyms
Related pairs
- involuntary and random
- involuntary and spontaneous
- unexpected and random
- unexpected and spontaneous
- accidental and random
- accidental and spontaneous
- casual and random
- casual and spontaneous
- unplanned and random
- unplanned and spontaneous
- fortuitous and random
- fortuitous and spontaneous
- unconsidered and random
- unconsidered and spontaneous
Both words in one sentence
- Lost: It may be spontaneous and random decision making, but I honestly couldn't resist.
Source: Screw the Rules, I Make Them! -
Spontaneous Human Combustion: In the "Electric Undertow" limited series, this happens to random people due to psychic harvesting by the alien VXX199.
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Spontaneous Choreography: During the opening titles of each movie, Austin engages in this with supposedly random bystanders.
Source: Film / Austin Powers
Cite this Source
Spontaneous and Random. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/random/spontaneous
Random & Spontaneous. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/random/spontaneous>.
Spontaneous or Random. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/random/spontaneous.
Google Ngram Viewer shows how "random" and "spontaneous" have occurred on timeline