The Collaborative International Dictionary
Abstentious
Abstentious \Ab*sten"tious\, a.
Characterized by abstinence; self-restraining.
--Farrar.
Wiktionary
abstentious
a. Characterized by abstinence; self-restraint.
WordNet
abstentious
adj. self-restraining; not indulging an appetite especially for food or drink; "not totally abstinent but abstemious" [syn: abstinent]