  We derive the conditions whereby null rays `defocus' within Infinite
Derivative Gravity for perturbations around an (A)dS background, and show that
it is therefore possible to avoid singularities within this framework. This is
in contrast to Einstein's theory of General Relativity. We further extend this
to an (A)dS-Bianchi I background metric, and also give an example of a specific
perturbation where defocusing is possible given certain conditions.
