What's the adjective for largest? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs enlarge, largen and enlargen which may be used as adjectives within certain contexts.
“In the vigour of his years, we hope too that his mind is not finally shut-in, but of the improvable and enlargeable sort.”
“It is known that any compact manifold which admits a metric of non-positive sectional curvature is enlargeable.”
“Such exceptional reinstatement upon a recurrence of a peculiar complex of psycho-physical conditions, suggests that the range of reproduction is indefinitely enlargeable.”