Meaning ofturn upside downin English

Verb

1. to flip or rotate something over; invert
   The acrobat learned to turn upside down during her training.
   Synonyms:

   invertfliprotatecapsizeoverturnupend
   Antonyms:

   rightuprightstraighten
2. to significantly alter or change something (often negatively)
   The company's financial crisis began to turn upside down their entire business strategy.
   Synonyms:

   upendoverturncapsizeinvertsubvertdisruptoverthrowreverse
   Antonyms:

   stabilizemaintainpreserveupholdsustain