1. in an incomplete or rough manner; with insufficient detail
2. in a suspicious or questionable manner
Usage: informal

Examples

• The witness described the events only sketchily.
• Her plan was sketchily outlined in the proposal.
• The details were sketchily presented in the report.
• He behaved rather sketchily during the interview.
• The map was sketchily drawn and hard to follow.
• She sketchily explained her whereabouts that night.