1. in a manner that touches or strikes something at an angle rather than directly; obliquely
2. in a way that involves only a brief or passing reference; superficially

Examples

• The bullet struck the armor glancingly, deflecting off to the side.
• She mentioned the scandal only glancingly in her speech.
• The car hit the guardrail glancingly before spinning out.
• He addressed the topic glancingly, without going into detail.
• Light reflected glancingly off the water's surface.
• The report touched on the issue glancingly rather than examining it fully.