Final answer:
In contrast to the term 'estimate', which refers to an approximation based on prior information, the antonyms can include 'guesstimate', 'fact', 'certainty', or 'exact'. These antonyms refer to a precise or definitive value, as opposed to a conjectured or approximated one.
Step-by-step explanation:
The antonym for the word 'estimate' can be 'guesstimate', 'fact', 'certainty', or 'exact'.
These are antonyms as they represent an exact or precise version of a value rather than an approximation which an 'estimate' reflects. An estimate involves using prior information and reasoning to reach a conclusion about an unknown value.
It could be about the average rent of a house in an area, percentage of successful basketball shots, or number of houses a power plant can power. In all these examples, certainty or factual figures are not guaranteed, but an approximation or guesstimation is provided instead.
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