What is the meaning of changeable?

adjective

• Capable of or tending to change in form or quality or nature.
  • usage: "a mutable substance"; "the mutable ways of fortune"; "mutable weather patterns"; "a mutable foreign policy"
  • synonyms: mutable
• Such that alteration is possible; having a marked tendency to change.
  • usage: "changeable behavior"; "changeable moods"; "changeable prices"
  • synonyms: changeful
• Subject to change.
  • usage: "a changeable climate"; "the weather is uncertain"; "unsettled weather with rain and hail and sunshine coming one right after the other"
  • synonyms: uncertain, unsettled
• Varying in color when seen in different lights or from different angles.
  • usage: "changeable taffeta"; "chatoyant (or shot) silk"; "a dragonfly hovered, vibrating and iridescent"
  • synonyms: chatoyant, iridescent, shot