adj.无限期的，期限不定的，模糊不清的，不明确的

Eric is condemned to indefinite prison term.
埃里克被判无期徒刑
Tom writes his letter with extreme simplicity and USES vague and indefinite expressions.
汤姆的信写得极为简单，表达含糊不清。
The company is facing indefinite suspension due to financial issues.
公司由于财务问题面临无限期暂停。
She's been on an indefinite leave from work to take care of her health.
她为了照顾健康，休了一个不确定期限的假。
The project's completion date is indefinite; it could be months or even years.
项目的完成日期不确定，可能是几个月甚至几年。
His contract with the team is indefinite, allowing for flexibility in negotiations.
他与球队的合同是不确定期限的，这为谈判提供了灵活性。
The effects of climate change are likely to be indefinite and far-reaching.
气候变化的影响很可能是长期且深远的。
The museum closed its doors indefinitely after a significant decrease in visitors.
博物馆在访客大幅减少后无限期地关闭了大门。
The search for extraterrestrial life continues indefinitely as scientists explore the cosmos.
随着科学家探索宇宙，对外星生命的搜寻将持续进行，没有确定的终止时间。
The government imposed an indefinite curfew in response to the escalating unrest.
政府对不断升级的动荡局势作出了回应，实施了无限期宵禁。
The artist's influence on modern art is indefinite; her works continue to inspire new generations.
这位艺术家对现代艺术的影响是无法估量的；她的作品继续激励着新一代。
Due to the pandemic, the conference has been postponed indefinitely.
由于疫情，会议被无限期推迟。