Mr. Putin, imperturbable as always, answered practically every query with a dollop of facts and statistics, a display that was reminiscent of President Bill Clinton's legendary grip on the details of governing.
Every man as placid and imperturbable as his own cow -there's a crusade for you, and in times like these, a lovely dream.
As Liz's foil, Jack is as absurd and imperturbable as Gracie on "The George Burns and Gracie Allen Show".
As imperturbable as they were in 1952, they seemed interested but not overwhelmed as their former lives were re-enacted.
"As good-humored and imperturbable as you so notoriously are," he said, tongue so firmly in cheek that it practically came out the other side, Olympian intrusions of this magnitude "might also prompt a little grumbling" on these shores.
They were magnificently led by Misbah-ul-Haq, who was as imperturbable as Desmond Lynam in his pomp and probably better at doing press-ups.
As good-humored and imperturbable as you so notoriously are, I like to think that the widespread disruption to your roads and transport networks, the large-scale deployment of military personnel and hardware on your streets, and the wholesale trampling of your First Amendment rights might also prompt a little grumbling.
Tactical wizardry is not his speciality, but he is calm, imperturbable and solid as a rock.
Happily she is imperturbable – a "cool cat", as Louis Smith has it.
He is, frankly, the most unlikely of heroes, described by the columnist Hugo Asch as "a midget, ungainly, imperturbable, without a powerful shot, nor header, nor charisma".
