The antonyms for "more overdramatic" are straightforward, subdued, understated, and subtle. These words refer to the opposite of overdoing things, keeping a low profile, and keeping emotions in check. They may be used to describe behavior, speech, or writing that is moderate, rational, and calm. Someone who is straightforward is honest and direct, without exaggerating or embellishing facts. Subdued refers to a person or a thing that is subdued or toned-down. Something understated is subtle or restrained in expression or performance. And, finally, something subtle is understated and hard to notice, requiring a keen observation to uncover.