Texture:
* Hard: This is the most direct opposite in terms of texture.
* Rough: This refers to a surface that isn't smooth or soft.
* Dense: This describes something that is tightly packed and not airy.
* Flat: This is the opposite of fluffy in terms of volume and shape.
Appearance:
* Plain: This contrasts with fluffy's sense of fullness and excitement.
* Simple: This is the opposite of fluffy's sense of complexity and detail.
Feeling:
* Uncomfortable: Fluffy is often associated with comfort and relaxation.
* Dull: Fluffy can be associated with excitement and energy.
It's important to consider the context of the word "fluffy" to determine the most appropriate opposite.