1. more lacking in completeness or detail; more roughly outlined
Usage: comparative form of sketchy
2. more questionable, suspicious, or unreliable in character
Usage: informal

Examples

• The second witness gave an even sketchier account of what happened.
• His alibi became sketchier the more questions we asked.
• The details in her report were sketchier than I had hoped.
• That neighborhood looks sketchier at night.
• The business deal seemed sketchier after we learned more about it.
• Her memory of the event grew sketchier over time.