Melancholiness is a state of feeling sadness and hopelessness. To express this emotion, there are various synonyms that we can incorporate in our vocabulary. Some of the common synonyms for melancholiness include depression, desolation, despair, gloom, and misery. Other synonyms that can be used include despondency, dejection, somberness, forlornness, and woe. The choice of the synonym will depend on the context in which the word is used. For instance, if we are referring to a medical condition, the term depression seems appropriate, whereas, if we are talking about a mood, then words like gloom or somberness are more suitable. Overall, incorporating synonyms into our communication is an essential tool to make our writing or speech more expressive and engaging.