Respuesta :

Answer:

certain

Explanation:

Random is to pick randomly which is a guess. Certain is to be sure.

Systematic is the opposite of random.

What are opposites?

A word that expresses a meaning that is diametrically opposed to the meaning of another word; in this case, the two words are antonyms.

Therefore, Systematic is the opposite of random.

To learn more about opposites, refer to :

https://brainly.com/question/12427791

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