Надо разбить на пары антонимы kind. polite, unfriendly, cruel, obedient, clever, naughty, friendly shy, rude, stupid noisy, brave, athletic, non-athletic, quiet
Polite-rude, unfriendly-friendly, athletic-non-athletic, noisy-quiet, obedient-naughty, clever-stupid, shy-brave, kind--cruel