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stealthy + noun
stealthy 常作定语，强调动作或行为隐秘、不引人注意。
The cat made a stealthy approach through the grass.
那只猫穿过草丛悄悄靠近。
秘密的；掩人耳目的；鬼鬼祟祟的
先理解核心含义，再看它在真实句子里的用法。
秘密的；掩人耳目的；鬼鬼祟祟的
quiet and cautious, trying not to be noticed
The cat made a stealthy approach through the grass.
那只猫穿过草丛悄悄靠近。
以隐秘或秘密为特征的,或类似隐秘的。
Characterized by or resembling stealth or secrecy.
The cat made a stealthy approach toward the bird, moving slowly to avoid being seen.
那只猫悄悄靠近那只鸟，慢慢移动以免被发现。
Her movements were stealthy, so nobody noticed her leave the room.
她的动作悄无声息，所以没人注意到她离开了房间。
The hiker moved with stealthy footsteps to avoid startling the deer.
那名徒步旅行者移动时脚步很轻，以免惊动鹿。
stealthy 常作定语，强调动作或行为隐秘、不引人注意。
The cat made a stealthy approach through the grass.
那只猫穿过草丛悄悄靠近。
作表语时描述某人或某行为具有小心、隐秘的特点。
Try to be stealthy when you enter the room.
进房间时尽量轻手轻脚，别弄出动静。
Not this
He moved stealthy through the room.
Use this
He moved stealthily through the room.
stealthy 是形容词，不能修饰动词 moved；要修饰动词需用副词 stealthily（由形容词加 -ly 构成）。汉语中没有形容词/副词形态区分，所以容易误用。
Not this
The cat's stealthy helped it catch the mouse.
Use this
The cat's stealth helped it catch the mouse.
stealthy 是形容词，不能作名词使用；这里需要名词 stealth 作主语，表示“隐秘、潜行”。形容词后缀 -y 不能用作名词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
悄悄接近
The cat made a stealthy approach toward the bird.
猫悄悄接近那只鸟。
鬼鬼祟祟的动作
I noticed his stealthy movement behind the curtain.
我注意到他在窗帘后鬼鬼祟祟的动作。
轻轻的脚步声
She heard stealthy footsteps coming up the stairs.
她听到楼梯上传来的轻轻脚步声。
偷偷一瞥
He cast a stealthy glance at the letter on the desk.
他偷偷地瞥了一眼桌上的信。
隐秘的方式
The detective followed the suspect in a stealthy manner.
侦探以隐秘的方式跟踪嫌疑人。
秘密行动
The soldiers carried out a stealthy operation at dawn.
士兵们在黎明时分执行了一次秘密行动。
Use stealthy naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想“steal（偷）”：小偷行动总是悄悄摸摸、怕人看见，所以stealthy就是“秘密的、鬼鬼祟祟的”。
语域：neutral 常见场景：日常描述、新闻报道、文学作品 该词多用于形容悄无声息、暗中进行的动作或行为，在正式和非正式场合都比较常见，但比口语化的sneaky稍显正式。通常用于描述人或动物小心避免被察觉的状态，语气较为中性。
同韵词：wealthy /ˈwelθi/ 和 healthy /ˈhelθi/，它们的重读元音 /e/ 与后面的 /lθi/ 和 stealthy 完全一致。形近异音词：stealth /stelθ/ 缺少末尾的 /i/；stealthily /ˈstelθɪli/ 多出一个音节，且 /θ/ 后的元音是 /ɪ/。
Dictionary facts from ECDICT, WIKTIONARY.