Open English Wordnet
Adjectives
(a)abstemioussparing in consumption of especially food and drink“the pleasures of the table, never of much consequence to one naturally abstemious” (John Galsworthy)
(s)abstemious, lightmarked by temperance in indulgence“abstemious with the use of adverbs”, “a light eater”, “a light smoker”, “ate a light supper”