The "reality principle" is a psychological concept proposed by Sigmund Freud, referring to the ability of individuals to prioritize and adapt their behaviors according to the constraints of the external world. This principle focuses on rational thinking, decision-making, and understanding consequences. Synonyms for the reality principle may include practicality, pragmatism, real-world thinking, rationality, reason, logic, common sense, objectivity, factuality, practicality, and sensibility. These terms capture the essence of the reality principle, emphasizing the need for individuals to recognize and accept the limitations imposed by the external environment when making choices or pursuing their desires. By adhering to the reality principle, individuals can navigate life more effectively and make decisions that are grounded in the actual circumstances they face.