Simple past tense and past participle of glower.(verb)
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Use "glowered" in a sentence
"This he indignantly denied, saying that he "had never buried a babe even in most tempestuous weather," when he rode several miles, but he always wore a band, and he complained in turn that members of his congregation turned away from him on the street, and "glowered" at him and "sneered at him.""
"While she turned the wide pages, painfully bewildered, the old man "glowered" at her."
"At any rate, his skill reminds him of the woman he did not like, and so he 'glowered' as Jo said. ""