The antonyms for the word "most rocklike" are words that describe qualities that are opposite to what rocks are known for. These words include soft, delicate, supple, flexible, yielding, pliable, and bendable. While rocks are typically known for their strength, rigidity, and durability, these antonyms describe qualities that are more malleable and easily affected by outside forces. For instance, a soft pillow is the opposite of a hard rock, as it is designed to provide comfort and mold to the shape of the user's body. Similarly, a supple plant stem is the antithesis of a rocky surface, embodying qualities of flexibility and pliability.