Haddest stab can be replaced by various synonyms depending on the context of the sentence. In general, it means to have made an attempt or effort towards something, often with a sense of determination or intention. Synonyms for haddest stab include tried, aimed, ventured, aspired, strived, tackled, undertook, and endeavored. Each of these synonyms carries a slightly different connotation, but they all convey the sense of taking action towards a goal or objective. Whether you use haddest stab or one of its synonyms, the key is to communicate a sense of purposeful action that reflects a determined effort towards achieving your desired outcome.