Synonyms for (adjective) spontaneous

Synonyms: unwritten, spontaneous, ad-lib

Definition: said or done without having been planned or written in advance

Usage: he made a few ad-lib remarks

Similar words: unscripted

Definition: not furnished with or using a script

Usage: unrehearsed and unscript spot interviews; unscripted talk shows

Synonyms: spontaneous, self-generated

Definition: happening or arising without apparent external cause

Usage: spontaneous laughter; spontaneous combustion; a spontaneous abortion

Similar words: unprompted, impulsive

Definition: proceeding from natural feeling or impulse without external stimulus

Usage: an impulsive gesture of affection

Similar words: intuitive

Definition: spontaneously derived from or prompted by a natural tendency

Usage: an intuitive revulsion

Similar words: instinctive, natural

Definition: unthinking; prompted by (or as if by) instinct

Usage: a cat's natural aversion to water; offering to help was as instinctive as breathing