spontaneous

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

1. happening or arising without apparent external cause (Freq. 8)
- spontaneous laughter
- spontaneous combustion
- a spontaneous abortion
• Syn:
self-generated
• Ant:
induced
• Similar to:
impulsive, unprompted, intuitive, natural, instinctive
• Derivationally related forms:
spontaneity
2. said or done without having been planned or written in advance
- he made a few ad-lib remarks
• Syn:
ad-lib, unwritten
• Similar to:
unscripted
• Derivationally related forms:
spontaneousness

• Từ đồng nghĩa / Synonyms:
  ad-lib, unwritten, self-generated