(as) dull as ditchwater

Definition of (as) dull as ditchwater

British, informal

  1. :  very boring The book is as dull as ditchwater.

Word by Word Definitions

  1. :  mentally slow :  stupid

    :  slow in perception or sensibility :  insensible

    :  lacking zest (see zest 2) or vivacity :  listless

  1. :  to make dull

    :  to become dull

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