So, I notice that "flammable" and "inflammable" mean the same thing,
but "corrigible" and "incorrigible" are antonyms.

Do you know of other pseudo-antonyms besides the flammable ones?

ravel and unravel

Please see contradictionary above

Below, of course (see below)

why? preston's thread is perfectly valid. and besides, your thread is now below, not above..

(unless you hold above means below..)

Interesting. Two threads pop up, the authors of both insisting that any posters go to the other. Both on a mutually intelligible topic, too.