Answer:
Monstrous hideous
Savage - bestial
Sylvan - wooded
Mellifluous - soothing sound
Explanation:
1. Anything monstrous can also be called hideous. It has a negative connotation.
2. Savage is when someone or anyone acts like a beast, bestial. It is also synonymous with barbaric or primitive.
3. Sylvan is anything related to the woods, or forest. Characteristic of these themes, or shapes or form of anything woody or foresty.
4. Mellifluous is the state of someone's voice or anything sound related that is sweet, soothing or calming.
