What does «tibieza» mean in Spanish?

Warm or temperate quality: the intermediate state between hot and cold.

Examples of use in Spanish: "la tibieza del mar Caribe es perfecta".
Lack of decisiveness in someone's actions.

Examples of use in Spanish: "tibieza de carácter".

"no debes actuar con tibieza frente a él, no dejes que te amedrente".