The antonyms for the phrase 'three winks' are manifold. Some possible antonyms include 'a long time', 'an eternity', 'hours', 'a day', 'a week', 'a month', 'a season', or even 'years'. These antonyms suggest a prolonged period of time, in contrast to the brief moment implied by 'three winks'. The phrase 'three winks' denotes a short and fleeting moment, while its antonyms connote a substantial duration. For example, an assignment that can be completed in 'three winks' is much quicker than one that takes hours, days, or more to finish. Thus, antonyms for 'three winks' highlight the contrast between brevity and length in time.