spontaneous

Adjective

• happening or arising without apparent external cause
  • "spontaneous laughter"
  • "spontaneous combustion"
  • "a spontaneous abortion"

Adjective Satellite

• said or done without having been planned or written in advance

Adj

• Self-generated; happening without any apparent external cause.
• Done by one's own free choice, or without planning.
• Proceeding from natural feeling or native tendency without external or conscious constraint.
• Arising from a momentary impulse.
• Controlled and directed internally; self-active; spontaneous movement characteristic of living things.
• Produced without being planted or without human cultivation or labor.
• Sudden, without warning.
• Said or done without prior planning or prior writing.

Examples

• He made a spontaneous offer of help.
• He made a spontaneous remarks in the court.
• To make a spontaneous decision

Synonyms

ad-lib, self-generated, unwritten, abrupt, autonomous, precipitant, precipitate, precipitous, spontaneous, subitaneous, sudden, suddent

Antonyms

induced

Anagrams of spontaneous