1. (

• searching ,
• trenchant

) having keenness and forcefulness and penetration in thought, expression, or intellect; "searching insights"; "trenchant criticism" ;

2. (

• hard-hitting ,
• trenchant

) characterized by or full of force and vigor; "a hard-hitting expose"; "a trenchant argument" ;

3. (

• clear-cut ,
• distinct ,
• trenchant

) clearly or sharply defined to the mind; "clear-cut evidence of tampering"; "Claudius was the first to invade Britain with distinct...intentions of conquest"; "trenchant distinctions between right and wrong" ;