fickle
Cross references: 1. inconstant fick.le \'fik-*l\ aj [ME fikel deceitful, inconstant, fr. OE ficol deceitful; akin to OE] befician to deceive, L pige-re to irk and prob. to OE fa-h hostile - more at FOE : marked by erratic changeableness esp. in affections - fick.le.ness n