sheltered (adj.)

• armed
• calm
• cloaked
• cloistered
• cool
• copyrighted
• covered
• defended
• dwindling
• guarded
• halcyon
• hushed
• impassive
• invulnerable
• isolated
• moldering
• pacific
• patented
• peaceable
• peaceful
• placid
• protected
• quiescent
• quiet
• reposeful
• restful
• resting
• safe
• secluded
• sequestered
• shielded
• smooth
• still
• stilly
• stoic
• stolid
• tranquil
• unagitated
• undisturbed
• unmoved
• unperturbed
• unruffled
• untroubled
• waning