English to English

noun (n)

• the quality of not being steady or securely fixed in place(noun.attribute)

  Synonym:
  ricketiness
  Antonym:
  firmness, steadiness
  

  source: wordnet30
• the quality of being unsteady--varying and unpredictable(noun.attribute)

  Antonym:
  steadiness
  

  source: wordnet30