This word should have been strangled at birth. Actually, it should have been strangled slightly before birth. Unfortunately it's made it into the Collins dictionary to cause pangs of revulsion and generalised despair.
I'm afraid dancical means what it appears to mean. You say it DANCE-i-CL, and it's defined by Collins, with magnificent hauteur, as 'a type of dance show in which choreographed performers dance to pop songs.'
My impulse is to say heaven preserve me from them. But actually I've never seen one, so perhaps dancicals can be brilliant.
I suppose (deep breath) I suppose I'm willing to give one a try if anyone knows of a really terrific one.
But calling it a dancical...
Word Not To Use Today: dancical. This word is a mixture of dance and musical. It makes me want to scream.