The word that can be best used to complete the sentence is "rigid/drastic"
This refers to the legal agreement between two or more people about something that needs to be honored.
Hence, we can see that based on the given sentence, there is no context clue except that there is a negative tone which suggests that the contract is too demanding and hence, cannot be honored.
Read more about contracts here:
https://brainly.com/question/14311369
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