Simple past tense and past participle of drown.(verb)
That has died by drowning.(adjective)
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Use "drowned" in a sentence
"“Run!” he shouted, the word drowned out by the triumphant moan of the dead as they reached him, one woman moving past him to get to Tania."
"“No!” she screamed, so loud she shocked herself back to reality, so loud the word drowned out the drumming of her pulse in her ears and the rushing water and her breathing and his and everything else in the universe except the primal need to survive."
"These reefs are sometimes referred to as drowned reefs."