" inconstant "

1: likely to change frequently, suddenly, or unexpectedly;

  * e.g., " ... our windjammer sailed wherever the inconstant winds took us "

•  Synonyms : 

•  capricious,

•  changeable,

•  changeful,

•  fickle,

•  flickery,

•  fluctuating,

•  fluid,

•  inconsistent,

•  mercurial,

•  mutable,

•  skittish,

•  temperamental,

•  uncertain,

•  unpredictable,

•  unsettled,

•  unstable,

•  unsteady,

•  variable,

•  volatile

•  Antonyms : 

•  certain,

•  changeless,

•  constant,

•  immutable,

•  invariable,

•  predictable,

•  settled,

•  stable,

•  stationary,

•  steady,

•  unchangeable,

•  unchanging,

•  unvarying

2: not true in one's allegiance to someone or something;

  * e.g., " ... an inconstant but always entertaining friend "

•  Synonyms : 

•  disloyal,

•  faithless,

•  false,

•  fickle,

•  perfidious,

•  recreant,

•  traitorous,

•  treacherous,

•  unfaithful,

•  untrue

•  Antonyms : 

•  constant,

•  dedicated,

•  devoted,

•  devout,

•  down-the-line,

•  faithful,

•  fast,

•  loyal,

•  staunch,

•  steadfast,

•  steady,

•  true