earliest

/ˈɜrliɪst/
adjective
  1. Happening or existing at the beginning of a period of time; before all others.
    • The earliest known dinosaur fossils are from the Triassic period.
    • She caught the earliest flight to New York.
    • My earliest memory is of playing in the garden.
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Antonyms
adverb
  1. At the earliest possible time or before anyone or anything else.
    • The package will arrive by Monday at the earliest.
    • She finished her homework earliest so she could go out to play.
    • He woke up earliest of all the campers.
Antonyms