Changeant.
ETYM Cf. French changeable.
1. Subject to change; SYN. uncertain, unsettled.
2. Such that alteration is possible; having a marked tendency to change; SYN. changeful.
3. Varying in color when seen in different lights or from different angles; SYN. chatoyant, iridescent, shot.
ETYM Old Eng. fikel untrustworthy, deceitful, AS. ficol, from fic, gefic, fraud, deceit.
Marked by erratic changeableness in affections or attachments; SYN. volatile.