Antonyms of adj spontaneous

2 senses of spontaneous

Sense 1
spontaneous (vs. induced), self-generated -- (happening or arising without apparent external cause; "spontaneous laughter"; "spontaneous combustion"; "a spontaneous abortion")

induced (vs. spontaneous) -- (brought about or caused; not spontaneous; "a case of steroid-induced weakness")
        => elicited, evoked -- (called forth from a latent or potential state by stimulation; "evoked potentials"; "an elicited response")
        => iatrogenic -- (induced by a physician's words or therapy (used especially of a complication resulting from treatment))

Sense 2
ad-lib, spontaneous, unwritten -- (said or done without having been planned or written in advance; "he made a few ad-lib remarks")

INDIRECT (VIA unscripted) -> scripted, written -- (written as for a film or play or broadcast)

Similarity of adj spontaneous

2 senses of spontaneous

Sense 1
spontaneous (vs. induced), self-generated -- (happening or arising without apparent external cause; "spontaneous laughter"; "spontaneous combustion"; "a spontaneous abortion")
       => impulsive, unprompted -- (proceeding from natural feeling or impulse without external stimulus; "an impulsive gesture of affection")
       => intuitive -- (spontaneously derived from or prompted by a natural tendency; "an intuitive revulsion")
       => natural, instinctive -- (unthinking; prompted by (or as if by) instinct; "a cat's natural aversion to water"; "offering to help was as instinctive as breathing")

Sense 2
ad-lib, spontaneous, unwritten -- (said or done without having been planned or written in advance; "he made a few ad-lib remarks")
       => unscripted (vs. scripted) -- (not furnished with or using a script; "unrehearsed and unscript spot interviews"; "unscripted talk shows")