"tone deaf" is common, but it is being replaced by "clueless" over the last 10-20 years: http://books.google.com/ngrams/graph?content=tone+deaf%2Cclueless&year

"tone deaf" is common, but it is being replaced by "clueless" over the last 10-20 years: http://books.google.com/ngrams/graph?content=tone+deaf%2Cclueless&year_start=1800&year_end=2000&corpus=0&smoothing=3 http://books.google.com/ngrams/graph?content=tone+deaf%2Cclu... burgeoning, is, compared to erstwhile: http://books.google.com/ngrams/graph?content=erstwhile%2Cburgeoning&year_start=1800&year_end=2000&corpus=0&smoothing=3 http://books.google.com/ngrams/graph?content=erstwhile%2Cbur... erstwhile replaced quondam in about 1910: http://books.google.com/ngrams/graph?content=erstwhile%2Cquondam&year_start=1800&year_end=2010&corpus=0&smoothing=3 http://books.google.com/ngrams/graph?content=erstwhile%2Cquo...