Synonyms for Pro Forma (same or very similar meaning)
WordNet sense 1 (as a formality only):
perfunctoryWordNet sense 2 (being in accord with established forms and conventions and requirements (as e.g. of formal dress)):
formalWordNet sense 3 (in a set manner without serious attention):
perfunctorily, as a formalityFrom the ODE community, based on WordNetadd/edit