A strong groupoid can be referred to as a robust groupoid, a sturdy groupoid, or a powerful groupoid. These synonyms all convey the idea of the groupoid being durable, reliable, and capable of handling complex mathematical operations. Other synonyms for strong include resilient, tenacious, and unyielding, all of which emphasize the groupoid's ability to withstand external pressures and maintain its internal structure. Additionally, synonyms such as cohesive, interconnected, and integrated highlight the groupoid's ability to work together as a cohesive unit, with all its parts functioning together seamlessly to achieve a common goal.