I think the terms are different
Feared-Golovkin, Kovalev and Matthysse-They are hard hitting, lots of risk, littler reward

Dominant-Viloria and Wlad-Effectively clearing out their division in recent years, certainly beatable having previously shown their issues, but right now they are dominating

Seemingly unbeatable-Mayweather and Ward-Flawless, they won't instill fear into opponents due to a perceived lack of power but they are more than dominant, they are pretty untouchable at the moment.