1. Without being seen
   "these organisms enter the body invisibly"

See also: invisible

Antonym: visibly

• staff officer
• staff sergeant
• staff tree
• staff vine
• staff-tree family
• Staffa
• staffer
• Staffordshire
• Staffordshire bull terrier
• Staffordshire terrier
• staffroom
• stag
• stag beetle
• stag party
• stag's garlic
• stag's-horn coral
• stage
• stage business
• stage crew
• stage dancing
• stage direct
• stage direction
• stage director
• stage door
• stage effect