› ECONOMICS, FINANCE too low or not powerful enough to be successful or effective: weak growth/market share/results There was unexpectedly weak growth in corporate output in May. weak performance/position Investors are already hesitant to commit because of the company's weak performance.weak demand/spending Consumer spending has been weak.continue/remain weak Investment banks continued weak after low trading volumes in the past few weeks.
› STOCK MARKET, FINANCE if a market, currency, investment, etc. is weak, it is falling or at a low level and unlikely to rise: weak currency/dollar/euro The weak dollar is a huge help to the profitability of the companies. weak investments/markets/prices Swiss shares ended a quiet session lower as weak bonds weighed on the market.