ultrasimple
adjective
ul·tra·sim·ple ˌəl-trə-ˈsim-pəl 
: extremely simple: such as
a
: extremely easy to understand or perform
an ultrasimple set of instructions
b
: having very few parts : not at all complex or fancy
an ultrasimple design
Word History
First Known Use
1859, in the meaning defined above