the state of feeling sad or depressed 忧郁；郁闷；消沉；没精打采 a lack of activity or improvement 无生气；停滞；萧条
Word OriginFrom the place in the ocean near the equator where there are sudden periods of calm. A sailing ship caught in this area can be stuck there because of a lack of wind.
Word Originlate 18th cent. (as doldrum ‘dull, sluggish person’): perhaps from dull, on the pattern of tantrums.