Changing words to antonyms by adding prefixes

Changing words to antonyms by adding prefixes worksheet
Antonyms are words with opposite meanings to each other. For example, ‘good’ is an antonym of ‘bad’. A prefix is a group of letters added to the beginning of a root word; for example, the prefix ‘un’ can be added to the root word ‘happy’ to make the word ‘unhappy’. Can you turn each of these words into its antonym by choosing the correct prefix from this row?
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Key stage: Year 5, KS2