insidious

"Her confidence in her ability to speak French helped her to participate more in class discussions. "

"After seeing the company's unethical practices, several defectors left to start their own business. "

"He intends to go to university."

"The icy road was treacherous, causing many cars to slide. "

"The gradual was sung by the choir just before the priest read the epistle. "

"The heavy rain is eroding the soil from the hillside. "

"The factory is producing thousands of cars every month. "

"The student made a stealthy exit from the library, hoping no one would notice. "

"Apply pressure to the wound to stop the bleeding."

"My grandmother made a delicious gingerbread cake for the school bake sale. "

"The new cafe owner's enticing aroma of freshly baked bread alluring customers into the shop. "

"Autumn succeeds summer."