unfaithful

adj

1. disloyal, false, false-hearted, perfidious, traitorous, treacherous; faithless, inconstant, unsteady, unsteadfast, untrustworthy, unde-pendable, unreliable, not to be depended or relied upon; recreant, renegade, apostate, backsliding; adulterous, Inf. two-timing.

2. inaccurate, inexact, imprecise, unprecise; faulty, flawed, defective; incomplete, unfinished, sketchy, patchy; incorrect, wrong, erroneous, untrue, fallacious.

3. insincere, disingenuous, uncandid, hypocritical, two-faced, Janus-faced, double-dealing, mendacious, timeserving; insidious, artful, cunning, shifty, slippery; dishonest, dishonorable, deceitful, crooked; unscrupulous, unprincipled, unconscientious.