A hyper-Calvinist is someone who either:
Denies that the gospel call applies to all who hear,
OR Denies that faith is the duty of every sinner,
OR Denies that the gospel makes any "offer" of Christ, salvation, or mercy to the non-elect (or denies that the offer of divine mercy is free and universal),
OR Denies that there is such a thing as "common grace,"
OR Denies that God has any sort of love for the non-elect.
All five varieties of hyper-Calvinism undermine evangelism or twist the gospel message.
Between Two Worlds passes on a definition of Hyper-Calvinism that I wish some of my Calvinist friends on the internet would read. Here’s a part: