Hellacious and Turn-on

Hellacious adjective - Extreme in degree, power, or effect.

Turn-on and hellacious are semantically related. In some cases you can use "Turn-on" instead an adjective "Hellacious".

Turn-on noun - Something that persuades one to perform an action for pleasure or gain.

Hellacious and turn-on are semantically related. Sometimes you can use "Hellacious" instead an adjective phrase "Turn-on".