In a list of adjectives, the general order of adjectives is: opinion, size, age, shape, color, origin, material, purpose. Based on these guidelines, "square" (shape), "five" (number), "yellow" (color), and "tiny" (size) should be arranged as follows:
- Tiny (size)
- Five (number)
- Square (shape)
- Yellow (color)
So, the first adjective in a list of adjectives from your options would be "tiny."