stark

"The class squirmed and fidgeted in the uncomfortable new chairs."

"The new school principal is a powerful advocate for student success. "

"His sudden appearance surprised me."

"My family has a different ideal for my future than I do. "

"The marathon runner had a vigorous training schedule. "

"The feeling is difficult to describe, but not unpleasant."

"Her dedication to her studies earned her top grades in every subject. "

"My mom is absolutely certain that I need to finish my homework tonight. "

"The clay began to obdurate in the kiln, hardening as the heat intensified. "

"The strong contrast between the bright red of the firetruck and the dark blue of the police car made them easily distinguishable. "

"Railway crossings without gates are highly dangerous."

"the performance of an undertaking or a duty"