| Estop (v. t.) To impede or bar by estoppel. Thesaurus Entries anticipate, avert, bar, debar, deflect, deter, discourage, dishearten, exclude, fend, fend off, forbid, foreclose, forestall, help, keep from, keep off, obviate, preclude, prevent, prohibit, repel, rule out, save, stave off, turn aside, ward off |