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unfocused + noun
这一结构修饰名词，表示图像或影像没有对准焦点。
The photographer deleted the unfocused shots.
摄影师删除了那些失焦的照片。
模糊的；失焦的
先理解核心含义，再看它在真实句子里的用法。
模糊的；失焦的
not in focus (of an image)
The photographer deleted the unfocused shots.
摄影师删除了那些失焦的照片。
不集中的；未聚焦的
Not focused
The photo was unfocused, so I could hardly recognize anyone.
这张照片没有对准焦点，所以我几乎认不出任何人。
I kept checking my phone during the meeting, so I was unfocused the whole time.
开会时我一直看手机，所以整个过程中都不专心。
A long walk in the park helped clear her unfocused thoughts.
在公园里长时间散步帮她理清了那些杂乱的思绪。
这一结构修饰名词，表示图像或影像没有对准焦点。
The photographer deleted the unfocused shots.
摄影师删除了那些失焦的照片。
主语为人时，表示注意力不集中。
She was unfocused all morning.
她整个上午都无法集中注意力。
后接on表示对某事物不专注。
He remained unfocused on the task.
他对这项任务仍然无法集中精力。
Not this
I was unfocus during the lecture.
Use this
I was unfocused during the lecture.
unfocused 是形容词，表示“不专注的”，不能丢掉词尾的 -ed。在 be 动词后作表语只能用完整的形容词 unfocused。
Not this
He is unfocused to his studies.
Use this
He is unfocused on his studies.
表示“对…不专注”时，unfocused 和 focused 一样，后接介词 on，不用 to；用 to 是受到中文“对”的干扰。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
目光涣散的眼睛
He stared out the window with unfocused eyes.
他目光涣散地望着窗外。
失焦的图像
The unfocused image could not be used in the report.
这张失焦的图像无法用在报告中。
涣散的思绪
A restless night left her with an unfocused mind.
一夜未眠让她思绪涣散。
缺乏重点的做法
An unfocused approach to studying will not help you pass the exam.
缺乏重点的学习方法不会帮你通过考试。
不集中的注意力
Multitasking often results in unfocused attention.
多任务处理常常导致注意力不集中。
Use unfocused naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
un-（不）+ focused（聚焦），像相机没对准焦距，画面模糊；也指人注意力没集中。
语域：neutral 常见场景：摄影与视觉描述、工作学习中的注意力或目标 unfocused 通常指图像或视线未聚焦（如照片模糊），也可形容人的注意力、思路或目标不集中。后者多见于工作、学习等需要专注的场合，整体比较中性，正式和日常口语中都可能用到。
与 unfocused 真正押韵的有 focused、locust，重读元音及后续辅音都是 /əʊkəst/（美音 /oʊkəst/）。注意 accused、discussed、unused 拼写近似，但分别读作 /əˈkjuːzd/、/dɪˈskʌst/、/ˌʌnˈjuːzd/，并不押韵。
Dictionary facts from ECDICT, WIKTIONARY.