Definition of "plausibility"

integrity, fidelity, and other gracious plausibilities

1668, David Lloyd, Memories of the Lives, Actions, Sufferings & Deaths of Those Noble, Reverend, and Excellent Personages that Suffered […] for the Protestant Religion

Plausibility, I know, can only be unmasked by shewing the absurdities it glosses over, and the simple truths it involves with specious errors.

1790, Mary Wollstonecraft, A Vindication of the Rights of Men‎

She too must shimmer through the gloom o' the grave, / Come and confront me— […] / Striking me dumb, and helping her to speak, / Tell her own story her own way, and turn / My plausibility to nothingness!

1869, Robert Browning, “XI. Guido.”, in The Ring and the Book. […], volume IV, London: Smith, Elder and Co., page 164, lines 1680–1681 and 1685–1687

The question of the plausibility of the counter-factual is seen as key in all three discussions of allohistorical fiction (as it is in Demandt's and Ferguson's examinations of allohistory) (cf. Rodiek 25–26; Ritter 15–16; Helbig 32).

2014 October 14, David Malcolm, “The Great War Re-Remembered: Allohistory and Allohistorical Fiction”, in Martin Löschnigg, Marzena Sokolowska-Paryz, editors, The Great War in Post-Memory Literature and Film‎, Walter de Gruyter GmbH & Co KG., page 173