Remembering Jane Straus | May 18, 1954–February 25, 2011 | Author of the original Blue Book of Grammar and Punctuation
Media pundits have errantly decided that precipitous means "immediate" or "swift," as when they discuss the advisability of "precipitous troop withdrawal." The correct adjective would be precipitate.
Precipitous means "steep," like a precipice.
Letter A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z