The term "wobblier" refers to something that is unsteady or unstable. Antonyms for this word may include sturdy, stable, firm, secure, invariable, balanced, steady, and unwavering. These words describe objects, structures or situations that are dependable, consistent and solid. For instance, something that is sturdy would mean it's strong and durable, while stable means it's stationary and in control. On the other hand, wobbly things are not dependable and can easily fall apart or topple over. Therefore, it's essential to use the appropriate antonym when replacing "wobbly," depending on the context of the sentence.