* Soft: This is a general antonym that describes the opposite texture of crispy.
* Soggy: This specifically describes something that is overly wet and lacking in crispness.
* Chewy: This describes a texture that is tough and elastic, the opposite of brittle and easily broken.
* Mushy: This describes something that is soft and easily crushed, lacking the firm texture of something crispy.
* Leathery: This describes a tough, inflexible texture, the opposite of the light and airy quality of something crispy.
The best antonym will depend on the specific situation and what you are trying to describe.