(philosophy) The paradoxical situation whereby, if one accepts the cognitivist theory that every action is preceded by a thought, each thought must also be preceded by another thought, and so thinking could apparently never begin.

(derogatory, politics) A characterization of the left which suggests that it paradoxically holds reactionary views by its tolerance of illiberal principles and ideologies (such as extremist Islamism) for the sake of multiculturalism and cultural relativism.

(neologism, derogatory, politics) Characteristic of the regressive left.

(neologism, derogatory, politics) A member of the regressive left.

plural of regressive leftist

plural of regression tree

(statistics) The phenomenon by which extreme examples from any set of data are likely to be followed by examples which are less extreme; a tendency towards the average of any sample. For example, the offspring of two very tall individuals tend to be tall, but closer to the average (mean) than either of their parents.

(statistics, derogatory) A statistical regression which uses many possible independent variables to attempt to explain variance in a dependent variable.

Alternative form of regression to the mean.