The most grabber is a term that denotes something that is extremely interesting, attention-grabbing or captivating. There are numerous antonyms for this term, depending on the context in which it is used. For instance, some people may find the most grabber to be tiresome, dull, or boring. The opposite of grabber would then be something that repels, bores, or disinterests. For other people, the most grabber may be too confrontational, aggressive, or challenging, and in this case, the antonym would be something that is more peaceful, harmonious, or calming. Other antonyms for most grabber that come to mind include languid, inactive, placid, unassertive, and unobtrusive, among others.