The phrase "was appreciative" can be expressed in a variety of ways to convey a similar sentiment. Some synonyms for this phrase might include "was grateful," "was thankful," "showed appreciation," or "expressed gratitude." Additional options might include "acknowledged with thankfulness," "had deep appreciation," or "demonstrated sincere thanks." Regardless of the particular phrasing used, the sentiment remains the same: the individual in question was appreciative of something or someone. Using synonyms and variations of common phrases can help to add variety to one's writing, while still conveying the intended meaning and tone.