1. in a way that lacks melody or musical quality; without being in tune

Examples

• She hummed tunelessly while doing the dishes.
• The old radio crackled tunelessly in the corner.
• He whistled tunelessly as he walked down the street.
• The children sang tunelessly but with great enthusiasm.
• The broken music box played tunelessly.
• She was humming tunelessly under her breath during the meeting.