Compulsively using a drug or other substance or engaging in a given behavior and unable to stop without experiencing withdrawal or other significant physiological or psychological symptoms:
Dependant is defined as relying on or needing another.
addicted to a drug
Find another word for strung-out. In this page you can discover 4 synonyms, antonyms, idiomatic expressions, and related words for strung-out, like: dependent, dependant, drug-addicted and hooked.