The phrase "be noteworthy" means to be remarkable, significant, or notable. There are several synonyms that can be used to convey the same meaning such as outstanding, impressive, remarkable, striking, remarkable, noteworthy, outstanding, notable, exceptional, remarkable, memorable, and distinguished. These words can be used interchangeably depending on the context. For example, to highlight an achievement, one might use the word "remarkable," whereas to emphasize something's importance or impact, one might use the word "noteworthy." Overall, using synonyms for the phrase "be noteworthy" can improve the readability and variety of your writing while still conveying the same meaning.