Tier 1: Replace Immediately

Tier 1 terms should be replaced whenever encountered. Terms included in this list have one or all of the following:

  • Strong social consensus within the software development community on replacements
  • Are identified by the Inclusive Naming Initiative as high-severity terms in need of immediate replacement
  • Terms where the impact of change or removal is low: for example, there is little entanglement in low-level systems or standardized language set by standards bodies
  • Have passed through all the review stages in Tiers 2 and 3


  • abort
  • blackhat-whitehat
  • cripple
  • master
  • master-slave
  • whitelist