underproof


un·der·proof

U0056100 (ŭn′dər-pro͞of′)adj. Having a smaller proportion of alcohol than proof spirit.

underproof

(ˌʌndəˈpruːf) adj (Brewing) (of a spirit) containing less than 57.1 per cent alcohol by volume

un•der•proof

(ˈʌn dərˈpruf)

adj. containing a smaller proportion of alcohol than proof spirit. [1855–60]