False; not true.
She says that I stole her necklace, but that's completely untrue.
Not faithful or loyal.
Now you say you're sorry / For being so untrue / Well, you can cry me a river, cry me a river
From Middle English untrewe, from Old English untrīewe, from Proto-West Germanic *untriuwī, from Proto-Germanic *untriwwiz. Equivalent to un- + true.
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