adj.可怕的，极坏的，很糟的，十分严重的，令人很不愉快的

The storm was frightful, with thunder booming and lightning flashing incessantly.
那场暴风雨可怕极了，雷声轰鸣，闪电不断。
The haunted house looked frightful at night, giving everyone goosebumps.
那座闹鬼的房子在夜晚显得格外恐怖，让人浑身起鸡皮疙瘩。
The child had a frightful nightmare, waking up screaming in the middle of the night.
孩子做了一个可怕的噩梦，半夜惊醒尖叫。
The accident scene was a frightful sight, with mangled cars and injured people everywhere.
事故现场惨不忍睹，到处是扭曲的车辆和受伤的人。
The old mansion's dark, cobweb-filled corners were absolutely frightful.
那座古老豪宅的阴暗、布满蜘蛛网的角落真是吓人。
The frightful noise of the explosion echoed through the entire neighborhood.
爆炸的可怕声音在整个街区回荡。
The mountain climber encountered a frightful blizzard, threatening his survival.
登山者遭遇了一场可怕的暴风雪，威胁到他的生存。
The frightful appearance of the monster in the movie made everyone jump out of their seats.
电影中怪物那可怕的外表吓得所有人都从座位上跳了起来。
The thought of facing my fear alone was absolutely frightful.
想象到独自面对恐惧真是令人胆寒。
The patient's sudden, frightful deterioration left the doctors stunned.
病人突然的、可怕的病情恶化让医生们大吃一惊。