soundless

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

marked by absence of sound
- a silent house
- soundless footsteps on the grass
- the night was still
• Syn:
silent, still
• Similar to:
quiet
• Derivationally related forms:
stillness (for: still), soundlessness, silence (for: silent)

• Từ đồng nghĩa / Synonyms:
  silent, still