Probationary period (probationary employee), английский A probationary period is a timeframe at the beginning of an employment relationship during which the employer reserves the right to dismiss the employee with no (or with minimal) notice or pay in lieu. often a probationary period is characterized as a time for the employer to assess the worker’s fit and suitability for the position. someone who is employed during a probationary period is called a probationary employee.