unsteadfast
English
Etymology
Inherited from Middle English unstedefast, from Old English unstædefast; equivalent to un- + steadfast.
Adjective
unsteadfast (comparative more unsteadfast, superlative most unsteadfast)
- Not steadfast; wavering, unfaithful.
- Synonyms: unfaithful, unleal, unloyal; see also Thesaurus:treacherous