searching vs trenchant

searching and trenchant both are adjectives.

Word	Noun	Adjective	Verb	Adverb
searching	No	Yes	No	No
trenchant	No	Yes	No	No

As adjectives, searching and trenchant are synonyms defined as:

searching and trenchant: having keenness and forcefulness and penetration in thought, expression, or intellect

searching (adjective)	trenchant (adjective)
exploring thoroughly	clearly or sharply defined to the mind
diligent and thorough in inquiry or investigation	characterized by or full of force and vigor
having keenness and forcefulness and penetration in thought, expression, or intellect	having keenness and forcefulness and penetration in thought, expression, or intellect