Write the words with opposite meaning. know-________, rude-_________ ,happy-________ ,smart-_________, friendly-_______, pleasant-_______,beautiful-_______, possible-________ ,noisy-__________ ,formal-_________
known - unknown rude - polite happy - unhappy smart - stupid friendly - unfriednly pleasant - unpleasant beautiful - unbeautiful possible - impossible noisy - noiseless formal - informal