Dissimulatio

Dissimulatio is a Latin noun meaning the concealment of one’s true thoughts, feelings, or intentions; feigning or dissembling. It derives from the verb dissimulare (to hide, pretend) and appears in Latin literature to denote the act of presenting an outward appearance that does not match inner conviction. In English-language scholarship the term dissimulation is used for the same concept.

In classical usage, dissimulatio figures as a social and political maneuver. Individuals might practice dissimulatio to navigate danger, protect reputations, or fulfill obligations without revealing private motives. Because Latin moral and political thought often linked virtue to prudence, dissimulatio was discussed as a double-edged instrument: advantageous in some circumstances, but potentially perilous when it degraded sincerity or trust.

Christian writers later treated dissimulatio as morally problematic, warning against deceit and hypocrisy while sometimes acknowledging the prudential reasons for concealing one’s true state. Medieval and Renaissance authors continued to debate the line between legitimate discretion and unethical pretense.

In contemporary scholarship, dissimulatio is studied across fields such as rhetoric, ethics, philosophy, and literature. It is analyzed in relation to related notions like concealment, hypocrisy, deceit, and authenticity, and is distinguished from outright lying (mendacium) and from mere outward performance (simulatio).

See also dissimulation; dissembling; hypocrisy; concealment.