By 1-2 years: teeth are duller and the back teeth may have some yellowing.
We do not want many 'variations' in the proof of a mathematical theorem:' enumeration of cases', indeed, is one of the duller forms of mathematical argument.
The British economy is not alone in expecting a duller future.
In spite of all this care the Horse's coat grew steadily duller. Its eyes sank in its head and hairs began to fall out of its tail.
But is there a duller love ballad in any major American musical than "Maria" " Maria!"
The frenzied brutality of the second half of last year, when arrests took place in the hundreds and many dissidents were killed and tortured in custody, has given way to a duller repression.
It is hard to think of a more boring title (though a volume called "Liberal Policy-Making" would surely be even duller), but this book is interesting because it hits the right moment.
This week's class was duller than last.
A phrenologist and a mesmerizer came -- and went again and left the village duller and drearier than ever.
There is nothing duller than climate, which can be converted into a topic only by scientists and hypochondriacs.
