Crossword Clue:

that cannot be removed

AnswerCrossword Clue
INDELIBLEThat cannot be forgotten
TRESSLock that cannot be opened
DRAFTCall to arms (that cannot be denied).
TONSILBody part that may be removed
POLYPSGrowths that may be removed by surgery
WIGLocks that can be removed without a combination