/ ˌmesiˈænɪk; NAmE / adjective ( formal )
1.
relating to a messiah
2.
attempting to make big changes in society or to a political system in an extremely determined and enthusiastic way :
The reforms were carried out with an almost messianic zeal.
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WORD ORIGIN
mid 19th cent.: from French messianique , from Messie (via late Latin and Greek from Hebrew māšīaḥ anointed), on the pattern of rabbinique rabbinical.