imperceptibly

"The not of the student's attendance record meant they were absent. "

"A ship moves rapidly."

"My sister brought several books to the library, and that one is about dinosaurs. "

"My son's math test had only one correct answer for the last problem. "

"We all saw it: he paled noticeably."

"The smoke alarm detected a fire in the kitchen. "

"Can I try a little of that sauce?"

""The teacher noticed that Sarah hadn't completed her homework." "

"The battleship had three backwards guns at the stern, in addition to the primary complement."

"The child's small was sore after carrying his heavy backpack to school. "

"My brother is tired, too. "

"The student perceived the teacher's frustration by the tone of her voice. "