a. Obs. [f. BATE v.2 3 + -LESS.] That cannot be bated or blunted; unalterably keen.
1593. Shaks., Lucr., ii. Haply that name of chaste unhappily set This bateless edge on his keen appetite.
1595. Markham, Sir R. Grinuile, cv. Sets a batelesse edge, grownd by his word Vpon their blunt harts.