Final answer:
Marin Seligman's idea of the pleasant life is an environment and lifestyle that promotes personal involvement, purpose, belonging, responsibility, challenge, comradeship, and love, while avoiding feelings of alienation, anomie, deprivation, boredom, loneliness, or chronic frustration.
Step-by-step explanation:
Marin Seligman's idea of the pleasant life can be defined as an environment and lifestyle that is conducive to a sense of personal involvement, purpose, belonging, responsibility, challenge, comradeship and love. It is an environment and lifestyle that does not promote a sense of alienation, anomie, deprivation, boredom, loneliness, or chronic frustration. This idea is based on the concept of positive psychology and focuses on the factors that contribute to lasting fulfillment and well-being.