unscheduled

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++un·sched·uled /ʌnˈʃedjuːld $ ʌnˈskedʒəld/ AWL adjective not planned or expected 未事先计划的；非计划中的 The plane made an unscheduled stop in New York. 飞机在纽约临时停留。

Examples from the Corpus

unscheduled• Food product quality is more easily maintained thereby reducing spoilage losses and production time through unscheduled cleaning.• Bad weather forced the pilots to make an unscheduled landing.• In 15 of those flights, pilots were forced to make unscheduled landings.• Seven times the aircraft made unscheduled landings.• A slip-up now and an extra, unscheduled recording break will be necessary.• As the southbound train hit the New Hampshire-Maine border, it made an unscheduled stop.• In the handover to Jan Lammers, another new battery was fitted, and then another in an unscheduled stop.• During follow-up, adverse events were looked for systematically at all scheduled and unscheduled visits.