The phrase "just completed" can be replaced with a variety of synonyms to add more descriptive language to your writing. Some options include "recently finished," "freshly concluded," "fully accomplished," "entirely done," "completely finalized," "totally fulfilled," "utterly achieved," and "thoroughly executed." Depending on the context, other options could include "successfully ended," "fully completed," "painstakingly finished," or "satisfactorily concluded." Using these synonyms can elevate your language and add depth to your writing. It helps to avoid repetition while also conveying the sense of a task that is finished, complete, and satisfactory, highlighting your level of accomplishment.