The addition of -ity to an adjective results in a shift of stress to the antepenultimate syllable; that is, words in -ity are stressed on the last syllable before the -ity, even in cases where this syllable is part of another suffix (as in words in -ability and -icity).
adjective, dumber, dumbest. 1. lacking intelligence or good judgment; stupid; dull-witted. 2. lacking the power of speech (offensive when applied to humans): a dumb animal.
The Dumbest Man in the World Giving Keith Raniere every possible benefit of the doubt, some members of JNESS (Allison Mack and/or Lauren Salzman?) started the DOS program of deceptive recruiting, blackmail, slavery, starvation, and genital branding, and kept it initially secret from Raniere, the self-proclaimed smartest and most perceptive person in the world.