unitasker

English

Etymology

From uni- +‎ task +‎ -er, modelled on multitasker.

Noun

unitasker (plural unitaskers)

1. A person who does a single thing at a time.
   • 2009 August 30, Ruth Pennebaker, “The Mediocre Multitasker”, in New York Times‎:

     Even with scientific validation at his fingertips, Mr. Leleux frets that the Stanford study may have been done “by a bitter unitasker like me who wants to validate his own existence.”

2. A tool, particularly a kitchen utensil, which is useful only for performing a particular, specialized task
   • 2016 March 4, Lesley Stockton, “The Best Paring Knife”, in The Sweethome‎, archived from the original on 24 March 2016:

     Bird’s beak: This style [of paring knife] has a shorter, curved blade that’s specifically designed for turning vegetables. It is really a unitasker and has no room on our knife strip at home.

Antonyms

• multitasker