sacrificial adj 1: used in or connected with a sacrifice; "sacrificial lamb"
Sacrificial \Sac`ri*fi"cial\, a. Of or pertaining to sacrifice or sacrifices; consisting in sacrifice; performing sacrifice. "Sacrificial rites." --Jer. Taylor. [1913 Webster]
18 Moby Thesaurus words for "sacrificial": atoning, best, bottom, conciliatory, cut, expiatory, giveaway, given up, half-price, lowest, marked down, propitiatory, reduced, rock-bottom, sacrificed, slashed, surrendered, yielded