Use 'secondarily' to show something is less important compared to another aspect. The funding was primarily for research and secondarily for development.
Pro Tip 2/3
Alternate Option
'Secondarily' indicates something is an alternative or backup option. If the primary method fails, we will secondarily rely on this technique.
Pro Tip 3/3
Sequence of Actions
Use 'secondarily' when outlining steps that follow an initial action. We focused on the design first and secondarily on usability testing.