Unstable difficult Synonyms

Unstable replaced

Definitions for Unstable


  • (adjective) not being in or able to maintain a state of balance
  • (adjective) likely to change frequently, suddenly, or unexpectedly
  • (adjective) not staying constant

Synonyms for phrase

UD abbreviation

UD is an abbreviation for Unstable Difficult
What does UD stand for?
UD stands for "Unstable Difficult"

Difficult replaced

Definitions for Difficult


  • (adjective) requiring considerable physical or mental effort
  • (adjective) requiring exceptional skill or caution in performance or handling
  • (adjective) not easy ; requiring great physical or mental effort to accomplish or comprehend or endure