something that controls what you do by keeping you within particular limits
The constraints of politeness wouldn't allow her to say what she really thought about his cooking.
Financial constraints on the company are preventing them from employing new staff.
The project faced a budget constraint, requiring the team to find cost-effective solutions to meet their goals.
Despite the tight deadline, the team worked creatively within the time constraint to deliver a high-quality presentation.
Environmental regulations served as a constraint, influencing the design of the new factory to minimize ecological impact.
The software development team had to work within the memory constraint to optimize the performance of the application.