unimpeded eloquence (無礙辯). This refers to the fourth of a Bodhisattva’s four abilities:
(1) unimpeded knowledge of all dharmas;
(2) unimpeded knowledge of their meanings,
(3) unimpeded expression in all forms, e.g., words in any language, sounds, and gestures;
(4) unimpeded eloquence in teaching sentient beings according to their capacities and preferences
(see; Four Kinds of Hindrance-Free Wisdom-Knowledge).