Amount is related to Measurement. Measurement is related to Number. Number is related to Odd. Odd is similar to Unusual. 
Tremendous is similar to Extraordinary. Extraordinary is a synonym of Unusual. Unusual is a synonym of Different. Different is a different concept from Usual. 
Amount <--RelatedTo--> Measurement <--RelatedTo--> Number <--RelatedTo--> Odd <--SimilarTo--> Unusual 
Tremendous <--SimilarTo--> Extraordinary <--Synonym--> Unusual <--Synonym--> Different <--DistinctFrom--> Usual 