While continuing my research on contemporary philosophy from a purely semantic point of view, I came up with these:

In 2004 Alain Badiou said:

“In my view, only those who have had the courage to work through Lacan‘s anti-philosophy without faltering deserve to be called ‘contemporary philosophers‘.” From Vérité: forçage et innomable, translated as Truth: Forcing and the Unnameable in Theoretical Writings. London: Continuum, 2004. ISBN 0826461468.

Assorted “anti-philosophy” site:wikipedia.org “anti-philosophy” matches:

• Wittgenstein’s philosophy (or rather anti-philosophy) of mathematics. …

• Buddhist philosophy – Many philosophers of Zen would maintain that Zen is anti-philosophy.

• Gorgias (dialogue) – Callicles goes on an anti-philosophy rant, saying there is no harm in young people engaging in useless banter, but that it is unattractive in older men. …

• De Stijl – Dadaist influences, such as I. K. Bonset‘s poetry and Aldo Camini‘s ‘anti-philosophy‘ generated controversy as well. Only after Van Doesburg’s death it was …

• Philosophical skepticism – At least in its manifestation of Nagarjuna‘s texts that form the core of Madhyamaka, the anti-essentialist aspect of Buddhism makes it an anti-philosophy.

What is interesting about any strain of anti- is that it seems to reveal more of its subject than its positive antithesis. Thus one tends to find more about the essence of psychiatry when one studies anti-psychiatry, etc…

See also: Anti- and philosophy and two posts by blogger Daniel Siksay: Deleuze, Badiou, Nietzsche: the anti-philosophical event part one and two.