Historical clue formulations

• Thin-sounding — 2025-06-22
• Making a certain metallic sound — 2025-06-13
• Thin in tone — 2021-07-16
• Having a high metallic sound — 2018-05-14
• Thin-toned — 2010-07-18
• Lacking in resonance — 2006-09-30
• Weak and thin, as a voice — 2005-09-19
• Thin, as sound — 1999-11-24
• Cheap-seeming — 1997-10-09