1. Cannot be removed or erased
   - indelible

See also: ineradicable

• errand
• errand boy
• errant
• errantry
• erratic
• erratically
• erratum
• errhine
• erring
• erroneous
• erroneous belief
• erroneously
• erroneousness
• error
• error correction code
• error handling
• error message
• error-prone
• errorless
• ersatz
• Erse
• Erskine Caldwell
• Erskine Preston Caldwell
• erst
• erstwhile