✅ The relationship between ANGRY and FURIOUS is that FURIOUS is a more intense or extreme form of ANGRY.

Applying this same relationship, we need a word that represents a more intense state than SAD; DEPRESSED signifies a deeper, more severe, and often prolonged state of sadness, fitting this pattern of increased intensity.

❌ GLOOMY describes a state of low spirits or lack of hope, which is similar to sad but does not represent a significantly higher degree of intensity in the same way FURIOUS does to ANGRY.

❌ WEEPING is a physical action (crying) that can result from sadness, not an emotional state itself.

❌ UNHAPPY is a synonym for sad, indicating a similar level of emotional discomfort rather than a more intense form.