资料来源 : pyDict

易变的,不定的,无节操的,反复无常的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Inconstant \In*con"stant\, a. [L. inconstans: cf. F. inconstant.
   See {In-} not, and {Constant}.]
   Not constant; not stable or uniform; subject to change of
   character, appearance, opinion, inclination, or purpose,
   etc.; not firm; unsteady; fickle; changeable; variable; --
   said of persons or things; as, inconstant in love or
   friendship. ``The inconstant moon.'' --Shak.

         While we, inquiring phantoms of a day, Inconstant as
         the shadows we survey!                   --Boyse.

   Syn: Mutable; fickle; volatile; unsteady; unstable;
        changeable; variable; wavering; fluctuating.

资料来源 : WordNet®

inconstant
     adj : likely to change frequently often without apparent or cogent
           reason; variable; "inconstant affections"; "an
           inconstant lover"; "swear not by...the inconstant
           moon"- Shakespeare [ant: {constant}]