Origin: 1250–1300; ME < OF < LL
dēliciōsus, equiv. to L
dēliciae delight +
-ōsus -ous 
Related forms: de⋅li⋅cious⋅ly, adverb
de⋅li⋅cious⋅ness, noun
Synonyms:
1. palatable, savory, delectable, dainty, delicate. Delicious, luscious refer to that which is especially agreeable to the senses. That which is delicious is highly agreeable to the taste or sometimes to the smell: a delicious meal. Luscious implies such a luxuriant fullness or ripeness as to make an object rich: a luscious banana; a luscious beauty; luscious music.
Antonyms:
1. unpleasant.