Avyāpāda: Hatelessness, non-ill-will, good-will, amity, goodness; is one of the three kinds of right motivation (see: sacca IV. 2), or advantageous thoughts vitakka and is the 9th of the 10 advantageous courses of actions kamma-patha II. The most frequently used synonyms are adosa (see: mūla) and metta and Brahma Viharas.
Maha Thera Nyanatiloka. Manual of Buddhist Terms and Doctrines, Buddhist Publication Society, first edition 1952.