0 used to describe words produced without any mistakes, or a person who is able to repeat a particular text from memory without making any mistakes: --
The messages were letter-perfect; in each instance, the message for signature bore the name of one upon whom the member who would receive it leaned in his destinies of politics.
It proved to be letter-perfect but expressionless.
And he spoke without pause or preliminary, as if rehearsing something he had had time to get letter-perfect but not to make entirely and naturally his own.
One final note on talk mode style: neophytes, when in talk mode, often seem to think they must produce letter-perfect prose because they are typing rather than speaking.
When the chorus were at last up to concert pitch and the principals letter-perfect, the dress rehearsal took place.
I shall expect each of you to be letter-perfect in the morning.
They give excellent account of themselves in primary schools, and in performances at public entertainments they are letter-perfect.
Moreover, he never hesitated for a word or stumbled, but was letter-perfect.
