Ada

Name one flaw about Ada... oh wait you can't

Horrible implementation of OOP.
Forced separation of space for declaration and initialization of variables.
Bitchy about type conversion

The following is legal in C:

#include <stdio.h>
int main() {
　　int a = 5; float b = a;
　　printf("%f\n", b); return 0;
}

And you won't even get a warning. But in Ada, if you tried this....

with Ada.Text_IO; use Ada.Text_IO;
with Ada.Float_Text_IO; use Ada.Float_Text_IO;

procedure main is
a : float;
b : integer := 5;
begin
　　a := b;
　　put(a); new_line;
end main;

It won't even compile.