adjective happening or arising without apparent external cause
Synonymsself-generated
Oppositesinduced
adjective said or done without having been planned or written in advance
Similarunscripted
Source: WordNet 3.1, Princeton University
Synonyms for spontaneous
Other words for “spontaneous”, grouped by meaning.
We found 7 synonyms for “spontaneous”. The most common are self-generated, impulsive, intuitive, natural, ad-lib.