Suitable for achieving a particular end in a given circumstance, often without regard for what is fair or right. The manager made an expedient decision to cut costs, even though it meant laying off several employees.
Convenient and practical, although possibly improper or immoral. It was expedient for him to lie about his qualifications to get the job.
Appropriate or advantageous for a given purpose or in a particular situation. It would be expedient to finish the report before the deadline.