Ambrosial, tangy, peppery, keen, zesty...
zaftig
amusing
Pleasantly surpised?
sharp, spicy, acid
He was pleasantly surprised when he opened the gift and saw what it was.
buzzed
The adverb form for the noun spicy is spicily.
stunned
the horse neighed pleasantly
no - It's just called "hot sauce" because of the spices in it make it spicy and another word for spicy is hot, as hot has two definitions.
Pleasantly is an adverb.
würzig.