1.Definition: (botany) of leaf shapes; of leaves having no divisions or subdivisions
2.Definition: apart from anything else; without additions or modifications
"The simple passage of time was enough", "The simple truth"
3.Definition: easy and not involved or complicated
"A simple game"
4.Definition: exhibiting childlike simplicity and credulity
5.Definition: having few parts; not complex or complicated or involved
"A simple problem", "Simple mechanisms", "A simple design", "A simple substance"
6.Definition: lacking mental capacity and subtlety
"A simple country schoolhouse", "Her black dress--simple to austerity"