1. Kept secret
   "the plan was kept carefully under wraps"

See also: covert

• bellyacher
• bellyband
• bellybutton
• bellyful
• bellying
• bellylaugh
• bellyless
• Belmont
• Belmont Park
• Belmont Stakes
• Christian Scientist
• Christian theology
• Christian year
• Christiania
• Christianisation
• Christianise
• Christianity
• Christianization
• Christianize
• christianly
• Christie
• Christine Marie Evert
• christless
• christlike
• christly