inefficient

"My grandmother's valuable were passed down through generations. "

"He is habitually inattentive of time."

"The incapable student struggled to complete even the simplest assignments. "

"The efficient of the new study method was improved learning outcomes. "

"He was indisposed with a cold."

"The students worked efficiently on their project, completing it ahead of schedule. "

"The new recruit was a strong and effective soldier, ready for basic training. "

"This flow chart represents the assignment of tasks in our committee."

"Juggling is an amusing pastime, but generally unproductive."

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

"The herbal remedy proved inefficacious at relieving his headache, as it did nothing to lessen the pain. "

"The best way to effect change is to work with existing stakeholders."