Superlative form of 'dozy'; the most sleepy, drowsy, or inclined to doze among all things being compared.
From 'dozy' plus the superlative suffix '-est,' which marks the highest degree of an adjective. Follows the pattern of 'happy/happiest,' 'sleepy/sleepiest.'
The doziest person in your class is the one who keeps falling asleep—and 'dozy' can also mean scatterbrained in British slang, so the doziest student might just be confused instead!
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