Conventionalism

adherence to or advocacy of att-tudes or practices.
something , as an expression or att-tude.
philosophy. the view that fundamental principles are validated by definition, agreement, or convention.
historical examples

the bonds of conventionalism were silently dissolving in the rising glow of his poetic nature.
encyclopaedia britannica, 11th edition, volume 9, slice 3 various

in morals he sets up a higher standard than conventionalism.
the atlantic monthly, volume 17, no. 102, april, 1866 various

conventionalism is another of the drifts which that rock has to arrest.
the book of isaiah, volume i (of 2) george adam smith

he would have been a subject of some dynasty or a victim of some conventionalism.
stanley in africa james p. boyd

conventionalism, precisely because it is a degradation in human character, is a first necessity in ornamentation.
travels in south kensington moncure daniel conway

thomas hardy, too, has been arraigned for the conventionalism of his plots.
the author’s craft arnold bennett

there was a time, it is said, when english and american literature seemed to be expiring of conventionalism.
the atlantic monthly, volume 20, no. 122, december, 1867 various

on the other hand it produces some of the worst features of conventionalism.
the land-war in ireland (1870) james g-dkin

the mirror and black cat i—well, er—to use a conventionalism that comes in rather handy—the mirror and cat—i picked up.
the sorcery club elliott o’donnell

there is a delightful freedom from conventionalism in the matter of dress.
with methuen’s column on an ambulance train ernest n. bennett

noun
advocacy of or conformity to that which is established
something conventional
(philosophy) a theory that moral principles are not enshrined in the nature of things but merely reflect customary practice
(philosophy) the theory that meaning is a matter of convention and thus that scientific laws merely reflect such general linguistic agreement