Equal tempered: a scale where each note is an identical frequency ratio step from the previous one.
Syntonic tempered: the frequency ratio of each musical interval is a product of powers of an octave and a tempered perfect fifth.
Meantone tempered: A system of syntonic tuning with a flattened fifth.
Well tempered: An attempt to create a tuning scale where any chord can be transposed to a new key without "wolf" notes that cause disharmony to the ears.
Evil tempered: Banjo tuning.
That is all ;).
-- Badtux the Snarky Penguin