Tv is related to Impossible. Impossible is related to Very. Very is related to Likely. Likely is similar to Promising. 
Awful is the opposite of Excellent. Excellent is the opposite of Performance. Performance is related to Act. 
Tv <--RelatedTo--> Impossible <--RelatedTo--> Very <--RelatedTo--> Likely <--SimilarTo--> Promising 
Awful <--Antonym--> Excellent <--Antonym--> Performance <--RelatedTo--> Act 