obligatory
adjective
required as a matter of obligation; mandatory.
nonobligatory
-
a word derived from
obligatory.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The conscience, mind you, of gentlemen who were hearing these "nonobligatory agreements" expounded for the first time and on August 3, 1914.
From Time Magazine Archive
The museum, which just received its 50 millionth visitor, is probably the world's biggest institution of informal, nonobligatory mass scientific education.
From Time Magazine Archive
