sad

1 ENTRIES FOUND:
sad /ˈsæd/ adjective
sadder; saddest
sad
/ˈsæd/
adjective
sadder; saddest
Britannica Dictionary definition of SAD
[also more sad; most sad]
1 
: not happy : feeling or showing grief or unhappiness
2 
: causing a feeling of grief or unhappiness
3 
: causing feelings of disappointment or pity
— see also sad sack

— sadness

noun