When it comes to brief attempts, there are a variety of synonyms you can use to convey the same meaning effectively. For instance, you could describe this as a "brief endeavor", a "short foray", a "small-scale effort", or a "quick undertaking". These expressions all suggest a short-term and temporary approach to something, reflecting a limited commitment or investment. Other alternatives might include "momentary trials", "brief stabs", or "fleeting tries", all of which emphasize the brevity and transience of the endeavour at hand. Ultimately, the precise synonym you choose will depend on the context and tone you want to convey, but these terms will help you describe brief attempts with precision and clarity.