overwhelm UK /ˌəʊ.vəˈ(h)wɛlm/US /ˌoʊ.vɚˈ(h)wɛlm/verb 4noun 1forms 3 verb4 •To overpower, crush.In December 1939 the Soviet Union attacked Finland with overwhelming force. •To overpower emotionally.He was overwhelmed with guilt.Joy overwhelmed her when she realized that she had won a million dollars. •To engulf, surge over and submerge.The dinghy was overwhelmed by the great wave. •To cause to surround, to cover.I lay Turpentine all over the same: then I overwhelm a broader pipe about the first — 1684 noun1 •The state or condition of being overwhelmed.The fact is, that full permeation and understanding of an overwhelm or trauma makes it cease as an overwhelm or trauma. — 2015 formsoverwhelmed · overwhelming · overwhelms