untruest

Adjective

untrue (comparative more untrue, superlative most untrue)

1. False; not true.
   • She says that I stole her necklace, but that's completely untrue.

   Synonyms:

   false, inaccurate, incorrect, unveridical, wrong

   Antonyms:

   true

2. Not faithful or loyal.
   • Now you say you're sorry / For being so untrue / Well, you can cry me a river, cry me a river1953, Arthur Hamilton, “Cry Me a River”

   Synonyms:

   false, perfidious, unfaithful, booky, dastardly, disleal, disloyal, double-crossing, double-dealing, double-faced

   Antonyms:

   faithful