Picture a beautiful sapphire or a diamond. You might feel a liking towards it. Now replace that with a ordinary stone from your garden. You no longer feel that liking. That is similar to the experience of disenchantment. You don't feel any aversion or hatred towards the stone, but you don't necessarily like it either.
Imagine seeing a beautiful person of the opposite gender. You might feel lust towards that person. Now replace the person with a tree or a wooden post. You do not feel lust towards the wooden post, but you don't have any aversion towards it either. That is similar to disenchantment.
Disenchantment is similar to the neutral feeling you get with neutral sensation. The difference is that it is caused by understanding the reality of nature.