I. ˌsīnēˈdīˌē, -nə̇ˈd-, ÷ -dī also ˌsin-; ˌsi](ˌ)nāˈdēˌā, ˌsē], ]nēˈd-, ]nə̇ˈd-, -diˌā adverb
Etymology: Latin
: without any future date being designated (as for resumption) : indefinitely
declared the House adjourned sine die — Hodding Carter
II. adjective
: made without any future date being designated (as for resumption) : indefinite
favored an adjournment sine die of Congress