At least , ∨ At the least Meaning, Definition & Usage

Definitions
  1. at the least estimate, consideration, chance, etc.; hence, at any rate; at all events; even. See However.
    He who tempts, though in vain, at least asperses The tempted with dishonor. Milton.
    Upon the mast they saw a young man, at least if he were a man, who sat as on horseback. Sir P. Sidney.

Webster 1913