Simple past tense and past participle of frighten.(verb)
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Use "frightened" in a sentence
"But it made her too ... not frightened -- she wasn't _frightened_ -- too _ashamed_ at the very thought of giving up, going back home empty-handed, blocked by a wizard who used cattle like these as his servants."
"I didn't feel frightened exactly, so fur; didn't _know_ enough, maybe, to be _frightened_ of _any_ animal."
"She was waiting to decide how she felt about it, whether the idea that this voice was trying to call her name frightened her, filled her with remorse or comforted her."