/ ɪnˈtempərət; NAmE / adjective ( formal )
1.
showing a lack of control over yourself :
intemperate language
OPP temperate
2.
( especially NAmE ) regularly drinking too much alcohol
► in·tem·per·ance / -pərəns; NAmE / noun [ U ]
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WORD ORIGIN
late Middle English (in the sense inclement ): from Latin intemperatus , from in- not + temperatus mingled, restrained (from the verb temperare ).