How to Use "unusable" with Example Sentences

1. China 's research sector also struggles with procedural problems and fraud that render its research unusable for other scientists .
2. Airlines urged passengers to check the status of flights before heading to airports , although many reservation lines and airline websites were overloaded and unusable .
3. He will almost certainly write something unusable , which you will then rewrite , congratulating him heartily and putting his name on it .
4. Wearing a dosimetry badge on his shirt to monitor his own exposure to radiation , he stopped his truck at a spot overlooking a slope that will be used to store waste ' tailings , ' the 91.5 % of the mine 's output that will be unusable .