1.Definition: capable of or tending to change in form or quality or nature

Related Adjective(s):mutable

2.Definition: subject to change

"A changeable climate"

Related Adjective(s):uncertain, unsettled

3.Definition: such that alteration is possible; having a marked tendency to change

"Changeable behavior", "Changeable moods", "Changeable prices"

Related Adjective(s):changeful

4.Definition: varying in color when seen in different lights or from different angles

"Changeable taffeta"

Related Adjective(s):chatoyant, iridescent, shot