WordNet sense 1 (curved down like an eagle's beak):

aquiline

WordNet sense 2 (having or marked by bends or angles; not straight or aligned):

crooked, crooked

WordNet sense 3 (addicted to a drug):

dependant, dependent, strung-out, drug-addicted

WordNet sense 4 (compulsively or physiologically dependent on something habit-forming):

addicted