Imo, 'continuum' still fails to clearly connote the characteristic of having multiple dimensions of variation rather than just one, even though in some contexts

Imo, 'continuum' still fails to clearly connote the characteristic of having multiple dimensions of variation rather than just one, even though in some contexts (like in the phrase 'space-time continuum') it is used to name something more structurally analogous to 'spectrum disorders' than spectrums.