uncrystallised adj 1: not finally or definitely formed; "uncrystallized ideas" [syn: {uncrystallized}, {uncrystallised}] [ant: {crystallised}, {crystallized}] 2: without real or apparent crystalline form; "an amorphous mineral"; "amorphous structure" [syn: {amorphous}, {uncrystallized}, {uncrystallised}]