Strong-Willed

Strong-Willed is a role modifier; it usually means that the player's abilities cannot be redirected or Roleblocked. However, any result that may be attained can still be tampered with by roles that alter informational results, such as Framer. In short, it greatly increases the chance of the player's ability working like the player wants it to.

Some moderators will ambiguously use this to mean that the strong-willed player cannot be recruited (by Cult, Neighborizer, and so forth). If you are not sure, consult with the moderator.

Strong-Willed is not to be confused with Strongman.

Variations

Strong-Willed is a role modifier that protects from roleblocking, redirection, or your target's protection. Other modifiers may exist that omit some of these abilities.

The list of role modifiers that are variants of Strong-Willed:

Unblockable - Can't be blocked, can be protected from or redirected.
Unprotectable - Can't be protected from, can be blocked or redirected.
Unredirectable - Can't be redirected, can be blocked or protected from.
Strongman - Can't be blocked or protected from, can be redirected.
Empowered - Can't be blocked or redirected, can be protected from.
Piercing - Can't be protected from or redirected, can be blocked.
Strong-Willed - Can't be blocked, protected from, or redirected. Roles like Commuter or Enchantress will still affect even Strong-Willed roles.

Use and Power

Strong-Willed is usually incorporated for thematic purposes, or to specifically counter a particular role (like Strongman is). However, in practice it does not make a very large difference.