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tired is applied to one who has been drained of much of his strength and energy through exertion, boredom, impatience, etc. tired by years of hard toil; weary (or wearied) suggests such depletion of energy or interest as to make one unable or unwilling to continue weary of study; exhausted implies a total draining of strength and energy; fatigued refers to one who has lost so much energy through prolonged exertion that rest and sleep are essential fatigued at the end of the day; fagged, an informal word, suggests great exhaustion or fatigue from hard, unremitting work or exertion completely fagged after a set of tennis
See tired in Webster's New World Roget's A-Z Thesaurus II
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