Wiktionary
at most
prep.phr. At the most; at a maximum or upper limit.
WordNet
at most
adv. not more than; "spend at most $20 on the lunch" [syn: at the most] [ant: at least, at least]
Usage examples of "at most".
He was strangely convinced that the marking was the print of some bulky, unknown, and radically unclassifiable organism of considerably advanced evolution, notwithstanding that the rock which bore it was of so vastly ancient a date - Cambrian if not actually pre-Cambrian - as to preclude the probable existence not only of all highly evolved life, but of any life at all above the unicellular or at most the trilobite stage.