A synonym for "grateful" that has eight letters is "thankful."
Emphasis
Alienate
Yuletide
ten years
WORD= 4 letters YET= 3 letters ALTHOUGH= 8 letters THEN= 4 letters RARELY= 6 letters NEVER= 5 letters
The first word is probably Grateful not enough info for the second word.
enormous
Tutelage
Alienate
Emphasis
Yuletide
nonsense
doubtful, unsavory, slippery
forebode, forecast, foretell
Assembly/assemble
deserted?
ten years