colder

"The history lecture was so uninteresting that I almost fell asleep. "

"The teacher's words about the students' struggles being a "storm brewing" were a metaphorical description of their frustration. "

"Her unconscious held the key to understanding her recurring nightmares. "

"The explanation was long and drawn-out."

"My brother's lack of consciousness during the lecture made it hard for him to understand the material. "

"Construction is underway on the new bridge."

"The temperature in the room dropped nearly 20 degrees; it went from hot to cold."

"the introduction of a new product into the market"

"The student spoke emotionally about her disappointment in the test results. "

"The police interrogation of the suspect lasted several hours. "

"The judge listened to both sides of the argument with a dispassionate demeanor, ensuring a fair ruling. "

"The presentation about the new school rules was very clear and easy to understand. "