hollow
Another word (synonym) for the word "unpleasant" that starts with an "h" is "horrific". Or at least that is what I could think of.
awful
The word "odious" means very unpleasant and objectionable. It describes something that is highly offensive, repulsive, or deserving of strong dislike. This term is often used to convey a strong emotional reaction to a person, action, or situation that is considered morally repugnant.
Unpleasant
Penury
The word is satanic. It means extremely evil or wicked.
Gross.
unlikable
Yes and it means unpleasant or disgusting.
excellent or excellence
wicked sick owning..rampage
It is taken from the Greek word Bromos, which literally means "stench of he-goats". Really. Bromine has a VERY unpleasant smell.