"changeable" in the adjective sense
1. mutable, changeable
capable of or tending to change in form or quality or nature
"a mutable substance"
"mutable weather patterns"
"a mutable foreign policy"
2. changeable, changeful
such that alteration is possible having a marked tendency to change
"changeable behavior"
"changeable moods"
"changeable prices"
3. changeable, uncertain, unsettled
subject to change
"a changeable climate"
"the weather is uncertain"
"unsettled weather with rain and hail and sunshine coming one right after the other"
4. changeable, chatoyant, iridescent, shot
varying in color when seen in different lights or from different angles
"changeable taffeta"
"chatoyant (or shot) silk"
"a dragonfly hovered, vibrating and iridescent"
Source: WordNet® (An amazing lexical database of English)
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