Scary things that begin with the letter i:
Some sad words:awfulbadcrushingdreadfulennuifriendlessglumhopelessilljoylessnessknocked downlethargymoodyneedyoverwhelmedpeevishqueasyremorsefulsorrytroubleduneasyvulnerablewoefulx...yearningzealless
Leukemia is something sad that starts with "l".
Lachrymose, Lamenting, Lugubrious are three.
abuse
bullying
elegy
Somber
damsel in distress?
qawawa quiet
Accident, airplane crash, alcoholism, amputation, apathy, arson and asphyxiation are sad. They begin with the letter a.
Rueful, remorseful.
hard is the antonym of easy happy is the antonym of sad