1. Antonyms for Bubbliest include flattest, stillest, dullest, sullenest, saddest, lowest, unhappiest, miserablest, gloomiest and moodiest

2. Antonyms for Bounciest include sullenest, dullest, lowest, saddest, unhappiest, miserablest, gloomiest, moodiest, forlornest and mournfullest