Synonyms:
- Pointlessly single-minded
- Stubbornly unhelpful
- Rigidly limited in scope
- Technically functional but practically useless
- Inflexibly one-track minded
- Obstinately narrow in approach
- Confidently wrong in a very specific way
- A tool that solves only one problem it was never hired for
- Blinkered to all alternatives
- Uselessly steadfast