The definition of “minority” is “the smaller of two groups forming a whole; a group of things or persons numbering less than half of a total.” In other words, take any group of things or persons and divide it into two groups. The larger group is the “majority” and the smaller one is the “minority.’’ The primary meaning of the word ”minority” does not indicate any specific group of people or things. It refers only to size. The secondary meaning of the word refers to a group regarded as different from the larger group of which it is a part. Without the context, your example, gives no indication to what it refers, people or things. “Largish” means fairly large. So a “largish minority” would be group of persons or things that is relatively close to half of the whole. BTW, if you can get your hands on “The American Heritage Dictionary of the English Language,” you would find, not only good definitions of words, but also examples of usage. Unfortunately, I think it’s pretty expensive in China. Nevertheless, it’s a tool I continue to use on a regular basis.

Minority means the least represented of a group or population. It is usually used when describing religious or political followers. As such, the smallest group can be described as the minority. If the smallest group (the minority) consists of 30%+, it could be described as a 'Largish minority' because its size is significant. Maybe 'Minority = 0 - 29%' 'Largish minority = 30%+' There is no rule to this, it must be considered each time.

largish means very large or big, minority means a group of people who differ racially or politically from a larger group of which it is a part. so now you can say " a large or big group of people who differ racially or politically from a larger group of which it is a part is called largish minority. stadium is a large usually roofless building with tiers of seats for spectators at sports events examples- football stadium, cricket stadium, outdoor stadium, indoor stadium Gym means a athletic facility equipped for sports or physical training , it is also called a fitness center or gymnasium.