1. Silent, not saying anything
   "Organized crime is thriving online but many victims want to keep stumm"
   - shtum, schtum, shtoom

Encyclopedia: Stumm

• advect
• advection
• advective
• advent
• Advent Sunday
• Adventism
• Adventist
• adventitia
• adventitial
• adventitious
• adventitious root
• adventive
• adventure
• adventure playground
• adventure story
• adventurer
• adventuresome
• adventuress
• adventurism
• adventuristic
• adventurous
• adventurously
• adventurousness
• adverb
• adverbial