
1) Acute 2) Astute 3) Caustic 4) Cogent 5) Incisive 6) Keen 7) Penetrative 8) Piercing 9) Searching 10) Stabbing
Found on
https://www.crosswordclues.com/clue/penetrating

1) Acute 2) Discriminating 3) Incisive 4) Keen 5) Knifelike 6) Penetrative 7) Perceptive 8) Piercing 9) Pointed 10) Probing 11) Sharp 12) Tending to penetrate 13) Thorough
Found on
https://www.crosswordclues.com/clue/penetrating

• (a.) Having the power of entering, piercing, or pervading; sharp; subtile; penetrative; as, a penetrating odor. • (p. pr. & vb. n.) of Penetrate • (a.) Acute; discerning; sagacious; quick to discover; as, a penetrating mind.
Found on
http://thinkexist.com/dictionary/meaning/penetrating/
Pen'e·tra`ting adjective 1. Having the power of entering, piercing, or pervading; sharp; subtile; penetrative; as, a
penetrating odor.
2. Acute; discerning; sagacious; quick to discover; as, a
penetrating mind.
Found on
http://www.encyclo.co.uk/webster/P/46
No exact match found.