When I studied at TCD there was a word quite used among my research group: losertech. From Urban Dictionary:

Losertech is something that is entirely worthless, be it a company, a concept, a theme... anything really. Can be liberally applied when denigrating a person's work, hopes, faith, ambitions, etc.

During all these years I've had the "pleasure" of working with several technologies that definitely fit the description. Here is a list of them in no particular order:

• PHP
• MySQL < 5.6
• Wordpress
• Drupal
• Sencha
• HipChat
• Microsoft Teams
• Confluence
• SAML
• SOAP
• XML
• XML-RPC
• XSL-Whatever
• Bluetooth IoT
• Couchbase
• JavaFX
• JSP
• Tuya
• AWS Cognito
• AWS Amplify
• Boeing after the 777
• Captcha
• Chromecast (hardware)
• Rate this app requests
• Cookie notice
• Virtual land
• Managed retool
• systemd
• SDD: Sales Driven Development

And countless others... I will add them as I remember.