Maximum

Antonyms of maximum:
lower limit, minimal, minimum, token, tokenish, negligible, stripped, stripped-down, nominal, marginal, borderline, littlest, minutest, smallest, tiniest, lowest, fewest, least, slightest, lessened, low.
Examples of usage:
  1. And so the condenser is charged to a maximum voltage, first in one direction and then in the other.
    "Letters of a Radio-Engineer to His Son", John Mills.
  2. At a maximum they seldom run over 100 feet in thickness, and they average less than 10 feet.
    "The Economic Aspect of Geology", C. K. Leith.
  3. I believe, however, that the failure to secure a maximum yield is more often due to defective methods of starting, handling and setting the plants than to any other single cause.
    "Tomato Culture: A Practical Treatise on the Tomato", William Warner Tracy.