EXPLOITED

exploited

(adjective) developed or used to greatest advantage

exploited, ill-used, put-upon, used, victimized, victimised

(adjective) (of persons) taken advantage of; “after going out of his way to help his friend get the job he felt not appreciated but used”

Source: WordNet® 3.1

Verb

exploited

simple past tense and past participle of exploit

Source: Wiktionary

EXPLOIT

Ex*ploit", n. Etym: [OE. esploit success, OF. esploit, espleit,revenue, product, vigor, force, exploit, F. exploit exploit, fr. L. explicitum, prop. p.p. neut. of explicare to unfold, display, exhibit; ex+plicare to fold. See Ply, and cf. Explicit, Explicate.]

1. A deed or act; especially, a heroic act; a deed of renown; an adventurous or noble achievement; as, the exploits of Alexander the Great. Ripe for exploits and mighty enterprises. Shak.

2. Combat; war. [Obs.] He made haste to exploit some warlike service. Holland.

2. Etym: [F. exploiter.]

Definition: To utilize; to make available; to get the value or usefulness out of; as, to exploit a mine or agricultural lands; to exploit public opinion. [Recent]

3. Hence: To draw an illegitimate profit from; to speculate on; to put upon. [Recent] In no sense whatever does a man who accumulates a fortune by legitimate industry exploit his employés or make his capital "out of" anybody else. W. G. Sumner.

Source: Webster’s Unabridged Dictionary 1913 Edition