(as) dull as ditchwater

idiom
Updated on: 15 Nov 2017

Definition of (as) dull as ditchwater

British, informal
:very boring
  • The book is as dull as ditchwater.

Word by Word Definitions

dull play
  1. : mentally slow : stupid

  2. : slow in perception or sensibility : insensible

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

  1. : to make dull

  2. : to become dull


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