againstismn.
/əˈɡɛnstɪz(ə)m/, /əˈɡeɪnstɪz(ə)m/, U.S. /əˈɡɛnstɪz(ə)m/ colloquial (originally U.S.)
The position or practice of being opposed to something, or of having an oppositional attitude in general; (habitual) opposition or criticism.
ΘΚΠ
the world > action or operation > difficulty > opposition > [noun] > opposition or resistance > quality of being resistive
resistiveness1803
againstism1944
1944 B. Stolberg Tailor's Progress ix. 203 The new Administration had come in on a tidal wave of angry againstism—against Hoover, against Big Business, against the bankers and the speculators.
1950 Sat. Rev. 28 Jan. 38/2 It supplements those liberal writings which define the liberal attitude too much in terms of what may be called ‘against-ism’.
1970 A. Glyn Blood Britishman xx. 248 ‘Againstism’, it may be thought, is not a quality which would necessarily be welcomed among immigrants.
2006 J. Foot Winning at all Costs (2007) xi. 314 There is a glorious tradition amongst Italian soccer fans of againstism—supporting whoever is playing against the team you hate.
This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021).
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n.1944