Select the INCORRECTLY spelt word.

The incorrectly spelled word is:

☀ Repulcive

The correct spelling is "Repulsive".

Explanation of the options:

☀ Nocturnal: This word is spelled correctly. It refers to animals or activities that are active during the night.

☀ Irrespective: This word is spelled correctly. It means regardless of or without consideration of something.

☀ Repulsive: This is the incorrectly spelled word. The correct spelling is "Repulsive." It describes something that causes strong dislike or disgust.

☀ Scoreboard: This word is spelled correctly. It refers to a board or electronic display where the score of a game or competition is shown.