overstress verb3 •To place excessive emphasis on something. •To place excessive physical stress on something, especially to such an extent that it deforms or breaks.[...] the complete frame will withstand a standing and buffing load of 200 tons without overstressing. — 1960 •To stress someone excessively.“I think we better not catch him anymore right now,” said the vet. “We don’t want to overstress him.” — 1989 formsoverstressed · overstressing · overstresses