obligatory

Antonym(s)

Sources

• NASH 1968 135 (mandatory), 159

  NASH, Rose. (1968) Multilingual Lexicon of Linguistics and Philology: English, Russian, German, French. Coral Gables, FL: University of Miami Press. 

• MATTHEWS 1981 125

  MATTHEWS, P.H. (1981) Syntax. Cambridge: Cambridge University Press.

• PALMATIER 1972 113

  PALMATIER, Robert A. (1972) A Glossary for English Transformational Grammar. New York: Appleton-Century-Crofts.

• WEINREICH 1980 282 (obligatoriness)

  WEINREICH, Uriel. (1980) On Semantics. Philadelphia: University of Pennsylvania Press.

• LONGACRE 1983 275

  LONGACRE, Robert E. (1983) The Grammar of Discourse. New York: Plenum Press.

• CROFT 1990 234-235 (obligatorification)

  CROFT, William. (1990) Typology and Universals. Cambridge : Cambridge University Press.

• MATTHEWS 1997 253 (also "Obligatory Contour Principle", "obligatory valent")

  MATTHEWS, P.H. (1997) The Concise Oxford Dictionary of Linguistics. Oxford: Oxford University Press.

• CRYSTAL 2003 323

  CRYSTAL, David. (2003) A Dictionary of Linguistics and Phonetics, 5th Ed Oxford: Blackwell.