trenchant vs searching

trenchant and searching both are adjectives.

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

As adjectives, trenchant and searching are synonyms defined as:

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

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