self-deception

Translations

self-deceptionnoun
His optimism was based more on self-deception than on evidence.
Son optimisme reposait davantage sur l’auto-illusion que sur des preuves.
Additional translations
duperie de soi-mêmePlus littéral ; emploi moins courant.

Definitions

self-deceptionnoun
the act or habit of deceiving oneself, especially by refusing to accept unpleasant facts or reality
His optimism was based more on self-deception than on evidence.