When he turned to his teammates, he encountered a reef of curious, reflective faces all gazing at him woodenly with morose and inscrutable animosity.
Yossarian leaned forward and peered closely into Orr’s inscrutable mask of contradictory emotions.
Intuition warned him that he was drawing close to some immense and inscrutable cosmic climax, and his broad, meaty, towering frame tingled from head to toe at the thought that Yossarian, whoever he would eventually turn out to be, was destined to serve as his nemesis.
Their pace quickened, and he felt as though he were flying along with his feet off the ground as they trotted in resolute cadence up the wide marble staircase to the upper landing, where still two more inscrutable military policemen with hard faces were waiting to lead them all at an even faster pace down the long, cantilevered balcony overhanging the immense lobby.
There are no more uses of "inscrutable" in the book.
Show samples from other sources
The computer gave some inscrutable error message I can’t remember.