Dissent is the absence of agreement between the expressions of will of the parties; it is open if the parties are aware, and therefore know, that the contract has not been concluded. Concealed dissent is when the parties believe that they are in agreement, when in reality their statements do not agree. A divergence of terms does not necessarily lead to dissent.
German: Dissens (273)
Source: LK-Lötscher, 11.05.2020