What is "unfaithfully"

Unfaithful \Un*faith"ful\, a.

1. Not faithful; not observant of promises, vows, allegiance, or duty; violating trust or confidence; treacherous; perfidious; as, an unfaithful subject; an unfaithful agent or servant.

   My feet, through wine, unfaithful to their weight.
   --Pope.

   His honor rooted in dishonor stood, And faith unfaithful kept him falsely true.
   --Tennyson.

2. Not possessing faith; infidel. [R.]
   --Milton. [1913 Webster] -- Un*faith"ful*ly, adv. -- Un*faith"ful*ness, n.

adv. In an unfaithful manner.

adv. in an unfaithful undependable unreliable manner [syn: undependably, unreliably] [ant: faithfully, faithfully, faithfully]