Is this sentence correct after all those wonderful meals the meatloaf served today tastes terribly?

Answer 1

No, the word 'terribly' is an adverb, a word used to modify a verb, an adjective, or another adverb.

The part of speech that is needed is an adjective to function as a predicate adjective (also called a subject complement).

A predicate adjective is an adjective that follows a linking verb that restates the subject (meatloaf = terrible).

"After all those wonderful meals the meatloaf served today tastes terrible."

Answer 2

No, "terribly" is an adverb and doesn't belong there. You would say "the meatloaf tastes terrible."

Answer 3

The meatloaf served today tastes terrible.