all-time

from WordNet (r) 3.0 (2006)

all-time
    adj 1: unsurpassed in some respect up to the present; "prices at
           an all-time high"; "morale at an all-time low"; "among
           the all-time great lefthanders"

from The Collaborative International Dictionary of English v.0.48

all-time \all-time\ adj.
   1. unsurpassed in some respect up to the present. prices at
      an all-time high; morale at an all-time low; among the
      all-time great lefthanders
      [WordNet 1.5]

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