Modern Chinese Criteria

Hyponym

• DEMONSTRATIVE　Be DELIBERATE in ACTING so as to SHOW one's ACT to OTHERS. (anc: 15/0, child: 0)

Antonym

• INVOLUNTARYNATURALLY AND LACKING an INTENTION to ACT as one ACTS.
• NATURALLYEASILY AND NOT:without BECAUSE of being COMPELLED OR BECAUSE of PLANNING, OR USING A METHOD.

See also

• ARBITRARYLACK REASON IN CHOOSING OR DECIDING. 

Hypernym

• INTEND　DESIRE for what one BELIEVES to be a POSSIBLE:FEASIBLE FUTURE ACT by ONESELF. (anc: 13/0, child: 3)
• DESIRE　GOOD FEELING IN-RELATION-TO ONESELF concerning the FUTURE HAVING, CONTROLLING, or ACTING:doing SOMETHING DEFINED. (anc: 12/0, child: 11)
• FEELING　NATURAL REACTION IN one's MIND. (anc: 11/0, child: 17)

Novyj objasnitel'nyj Slovar' Sinonimov Russkogo Jazyka ( APRESJAN 2004) p. 593

Lateinische Synonyme und Etymologien ( DOEDERLEIN 1840) p.

VOLUNTARY

sponte refers to an action being undertaken voluntarily, on the agent's own free initiative.

ultro refers to an action being undertaken in an over-ready manner.

libenter adds to the notion of voluntariness the element of a positive feeling of pleasure on the part of the agent.

voluntate emphasizes the act of will involved in the voluntary action.

Handbook of Greek Synonymes, from the French of M. Alex. Pillon, Librarian of the Bibliothèque Royale , at Paris, and one of the editors of the new edition of Plaché's Dictionnaire Grec-Français, edited, with notes, by the Rev. Thomas Kerchever Arnold, M.A. Rector of Lyndon, and late fellow of Trinity College, Cambridge ( PILLON 1850) p. no.199