Broadly based, wide-ranging.
Of a tax: applying to most or all taxpayers or transactions, rather than a targeted subset.
Diverse in kind or nature; composed of diverse parts.
Incommensurable because of different kinds.
Visibly consisting of different components.
Of a network comprising different types of computers, potentially with vastly differing memory sizes, processing power and even basic underlying architecture; alternatively, of a data resource with multiple types of formats.
Having more than one phase (solid, liquid, gas) present in a system or process.