1. (

• dilutant ,
• diluent ,
• thinner

) a diluting agent ;

1. (

• thin ,

) of relatively small extent from one surface to the opposite or in cross section; "thin wire"; "a thin chiffon blouse"; "a thin book"; "a thin layer of paint" ;

2. (

• thin ,
• lean ,

) lacking excess flesh; "you can't be too rich or too thin"; "Yon Cassius has a lean and hungry look"-Shakespeare ;

3. (

• slender ,
• thin

) very narrow; "a thin line across the page" ;

4. (

• sparse ,
• thin

) not dense; "a thin beard"; "trees were sparse" ;

5. (

• thin ,

) relatively thin in consistency or low in density; not viscous; "air is thin at high altitudes"; "a thin soup"; "skimmed milk is much thinner than whole milk"; "thin oil" ;

6. (

• thin ,

) (of sound) lacking resonance or volume; "a thin feeble cry" ;

7. (

• thin

) lacking spirit or sincere effort; "a thin smile" ;

8. (

• flimsy ,
• fragile ,
• slight ,
• tenuous ,
• thin ,

) lacking substance or significance; "slight evidence"; "a tenuous argument"; "a thin plot"; "a fragile claim to fame" ;