a-vikārin mfn. unchangeable, invariable (as truth), [MBh. xii, 5979] & (superl. °ri-tama) [5986], &c.
unchangeable (in character), faithful, [Mn. vii, 190]
without change, without being changed, [Suśr.]
not exhibiting any alteration (in one's features), [Kathās.]