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luckless + noun
He is a luckless traveler who lost his passport.
他是一个不幸的旅行者，丢了护照。
不幸的；运气不好的
先理解核心含义，再看它在真实句子里的用法。
不幸的；运气不好的
Unlucky; having no good fortune or success.
He is a luckless traveler who lost his passport.
他是一个不幸的旅行者，丢了护照。
不成功的；失败的。
Unsuccessful, in a failing manner.
没有运气的；不幸的。
Without luck, unfortunate.
The luckless traveler missed both flights and had to spend the night at the airport.
那位不幸的旅行者错过了两趟航班，不得不在机场过夜。
Their luckless attempt to climb the mountain ended in a sudden storm.
他们那次不幸的登山尝试以一场突如其来的暴风雨告终。
He remained luckless in love, despite his many kind gestures.
尽管他有很多善意的举动，但在爱情方面仍然不走运。
He is a luckless traveler who lost his passport.
他是一个不幸的旅行者，丢了护照。
The team was luckless in the final game.
这支队伍在决赛中运气不佳。
Not this
He is a luckless.
Use this
He is luckless.
形容词“luckless”不能直接用作名词，应去掉冠词“a”，直接作表语。
Not this
He luckless the exam.
Use this
He was luckless in the exam.
“luckless”是形容词，不能用作及物动词。正确结构是“be luckless in”表示在某方面不幸。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
倒霉的一天
It was a luckless day for the expedition.
对探险队来说，这是倒霉的一天。
不成功的尝试
Their luckless attempt to reach the summit ended in bad weather.
他们登顶的不成功尝试因恶劣天气而告终。
不幸的恋人
He played the part of a luckless lover in the old film.
他在那部老电影中扮演一个不幸的恋人。
不幸的受害者
The luckless victim of the scam lost everything.
这场骗局的不幸受害者失去了一切。
Use luckless naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 luckless 拆成 luck（运气）+ less（少），联想一个总是错过好运的人：好运从不降临，因而不幸、失败。
语域：formal 常见场景：文学叙述、新闻报道、正式书面语 luckless 多用于书面或正式语境（如文学作品、新闻报道），日常口语中更常用 unlucky 或 unsuccessful。可表示“不幸的”或“不成功的”。
luck、pluck、truck 都含 /ʌk/ 音，与 luckless 的重读首音节一致，但非整词押韵；reckless、helpless、careless 拼写都以 less 结尾，但发音不同（结尾为 /ləs/），不是同韵词。
Dictionary facts from ECDICT, WIKTIONARY.