Antonyms for the phrase "was striking" may include terms such as "unremarkable," "ordinary," "dull," "ordinary," and "commonplace." These words essentially convey the opposite meaning of "was striking," indicating an absence of some unique or noteworthy feature. For instance, if something was described as "unremarkable," it would suggest that no particular feature stands out or catches the observer's attention. On the other hand, if something was striking, it would imply that something distinctive, impressive or even shocking occurred, either in terms of appearance or behavior. In conclusion, antonyms of "was striking" typically describe things that are not exceptional or do not stand out in any way.