Answer:
Help: encourage, befriend, support, second, uphold, back, abet, further, promote, foster, ameliorate, alleviate, heal
Dumb: stup!d, dull, d3nse, cr4ss, bl0ckheaded, s3nseless, unintellig3nt, m0ronic, f0olish, dens3, feeble-mìnded, idi0tic and ignoranT.