1. Without a sound
   - soundlessly, silently

See also: noiseless

• favela
• faveolate
• favism
• favonian
• favor
• favorable
• favorable position
• favorable reception
• favorableness
• favorably
• favored
• favorite
• favorite son
• favoritism
• favour
• favourable
• favourable position
• favourable reception
• favourableness
• favourably
• favoured
• favourite
• favourite son
• favouritism
• favus