upsetter

English

Etymology

upset +‎ -er

Noun

upsetter (plural upsetters)

1. One who upsets (something); a disrupter.
   • 1624, Democritus Junior [pseudonym; Robert Burton], The Anatomy of Melancholy: […], 2nd edition, Oxford, Oxfordshire: Printed by John Lichfield and James Short, for Henry Cripps, OCLC 54573970:

     , Part 1:

     And so were all Christians in Pliny's time, insane like others, and called not long after, followers of madness, upsetters of men, vicious innovators […].

2. A person or device that turns something upside down.

Anagrams

• reputest, upstreet