Example usage:
Terence, you have indefatigable enthusiasm. The effect it has on people is inspiring.
In the sense of exuberance, but you feel positively about it.
Example usage:
Terence, you have indefatigable enthusiasm. The effect it has on people is inspiring.
In the sense of exuberance, but you feel positively about it.
On its own: positive.
Modifying a neutral quality: positive.
However, it's not incorrect to use it as a modifier of a negative quality, so the obviously negative "your indefatigable stupidity continues to amaze me" is a valid use, too.
Yes, indefatigable is a word with positive connotations (here). The repeated use of indefatigable as a warship name underlines the general tone of approval.
The word 'indefatigable' is a positive word. It means persisting or working tirelessly. The word tireless itself gives out postitivty and optimism, if used as an adjective for somebody. Hence, it has a positive connotation.