The antonyms for the word "more slipping" are "stable," "secure," "firm," "steady," "solid," and "immovable." These words imply the opposite of "slipping," which means to slide or glide out of control, usually unintentionally. Stability suggests an unchanging state of balance, while security denotes a feeling of safety and protection. Firmness and steadiness imply strength and reliability, while solidity suggests a state of being dense and unyielding. Immovability indicates a lack of movement or change, emphasizing the opposite of slipping. Using these antonyms can help communicate a sense of stability, control, and security when describing a situation or object.