> For a contract to be treated as a contract of adhesion, it must be presented on a standard form on a "take it or leave it" basis, and give one party no ability to negotiate because of their unequal bargaining position. The special scrutiny given to contracts of adhesion can be performed in a number of ways:

> If the term was outside of the reasonable expectations of the person who did not write the contract, and if the parties were contracting on an unequal basis, then it will not be enforceable. The reasonable expectation is assessed objectively, looking at the prominence of the term, the purpose of the term and the circumstances surrounding acceptance of the contract.

https://en.wikipedia.org/wiki/Standard_form_contract#Contrac...

under US law anyway; some EULAs are unenforcable under EU laws.