You are mixing your terms. Complexity is another word for many. As such it is measurable objectively. The opposite, simplicity, means fewer.
Readability is highly subjective. At this point you are talking about what is easier for you. Easiness is not simplicity. Simplicity, in almost all cases, requires addition effort and that is not easy.
I did say that simple doesn't mean easy. I don't know how to judge whether something is many or few without a fixed norm, nor how to measure it without reference to the environment it exists within. Simplicity does not mean having so little to the point of unease.
"Everything should be as simple as possible, but not simpler"
- Einstein (probably[0])
Brainfuck is a simple language. A Brainfuck program written to parity with an existing non-Brainfuck program is likely complex. A musical note is simple, but a musical score may be highly complex.
Readability is highly subjective. At this point you are talking about what is easier for you. Easiness is not simplicity. Simplicity, in almost all cases, requires addition effort and that is not easy.