1. in a manner that fails to produce the desired or intended result; ineffectually
Usage: formed from non- + effectively; formal or technical register

Examples

• The medication worked noneffectively in treating the patient's symptoms.
• The team communicated noneffectively, leading to project delays.
• The old equipment operated noneffectively and needed replacement.
• He argued his case noneffectively, failing to convince the jury.
• The policy was implemented noneffectively across different departments.