Thriller/ˈθrɪlər/ Definition 1 of 2Pro Tip 1/3Tense Atmosphere Thrillers often involve danger or crime, creating a high-tension atmosphere. I couldn't sleep after reading that thriller - it was too tense. Pro Tip 2/3Unexpected Twists A key element of thrillers is the presence of unexpected plot twists. The thriller had a twist I never saw coming. Pro Tip 3/3Genre Blend Thrillers can combine with other genres, like 'spy thriller' or 'legal thriller'. That spy thriller mixed espionage with edge-of-the-seat excitement.