unruffable
English
Etymology
Adjective
unruffable (comparative more unruffable, superlative most unruffable)
- (archaic) imperturbable
- 1836, Charles Dickens, The Pickwick Papers:
- Sam, with a due allowance for the frailties of human nature, obeyed all his master's behests with that imperturbable good-humour and unruffable composure which formed one of his most striking and amiable characteristics.