"Hitting skids" refers to a situation where an individual or organization experiences a sudden downturn or decline in fortune. Antonyms for this phrase could include "thriving," "prospering," "flourishing," "succeeding," or "progressing." These words indicate growth and success, as opposed to the negative connotations of hitting skids. Other antonyms could include "ascending," "surging," or "elevating," which also denote upward movement and improvement. It is important to consider the context in which these antonyms may be used, as hitting skids can apply to various situations, such as financial trouble, career setbacks, or personal difficulties.