indefatigable

"How do you sleep at night when you attack your kids like that!?"

"The teacher determined the parameters of the history project, specifying the required length and number of sources. "

"The drummer emphasized the ands in the song, making the rhythm very clear. "

"The master chef had complete control over the kitchen and its staff. "

"She has had a persistent cough for weeks."

"She gave a studied reply."

"Asphalt, composed of oil and sand, is a widely used material for roads."

"The weather was extremely hot today; we stayed inside all afternoon. "

"It looks weaker and weaker, the more I think about it."

"He is a student of life."

"We challenged the boys next door to a game of football."

"The marathon runner was tireless and untiring, completing the race despite the heat and long distance. "