I understand your point. The naming of basic types has been a contentious issue from the beginning. The trouble is, whichever names D picks will have passionate defenders as well as equally eloquent and passionate detractors.

creal actually did used to be "complex", but trouble came when it became necessary to have complex float and complex double types as well. I don't particularly care for C's method of stringing together long sequences like "complex long double", it's just too much typing.

So, I opted for a short, simple, consistent naming convention.