unsteadfast

adjective

un·​steadfast

¦ən+

1

: not steadfast in thought or action : vacillating

an unsteadfast backslider

a man of unsteadfast heart

2

: unstable sense a(1)

the unsteadfast waters of the ocean

unsteadfastness

"+

noun

Word History

Etymology

Middle English unstedefast, from un- entry 1 + stedefast steadfast

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