English edit

Etymology edit

un- +‎ filter

Verb edit

unfilter (third-person singular simple present unfilters, present participle unfiltering, simple past and past participle unfiltered)

  1. (transitive) To undo the filtering of (data, etc.), or remove a filter from.
    • 2015, Peter Weverka, Office 2016 All-In-One For Dummies:
      Click the OK button on the column's dropdown list or the Custom AutoFilter dialog box to filter your list. To see all the data in the list again — to unfilter the list — click the Clear button on the Data tab.

Noun edit

unfilter (plural unfilters)

  1. (computing, data) The lack or absence of a filter
  2. (informal) A filterless cigarette