No. Account deletion is permanent and cannot be undone. Once your account is deleted, your profile, matches, Connections, and messages are permanently removed and cannot be recovered.
If you'd like to use Zoosk again in the future, you're always welcome back — you'll just need to create a new account and set up a new profile. See How do I sign up for Zoosk?
If you only want to step away for a while rather than leave for good, you don't have to delete your account. See Can I pause, hide, or deactivate my profile? for lighter options.