Oh, they can spend long periods of time being inert, and then resume activity when conditions change to be more favorable?

... Like a tardigrade? Or a seed?

Oh, they cannot reproduce themselves on their own or within their own species?

... Like a obligate parasite wasp? Or a plant species that relies on a pollinator?

Oh, they do not reach a stable equilibrium within their ecosystem?

... Like humans?

I'll give you that viruses never metabolize and are not capable of homeostasis... but they do not lack 'any' of the characteristics of life, they have some big ones.

They reproduce, evolve, and respond to stimuli.