GRANDMOTHER Synonyms: 36 Similar and Opposite Words - Merriam-Webster
https://www.merriam-webster.com/thesaurus/grandmother
WEBSynonyms for GRANDMOTHER: grandfather, matriarch, ancestress, ancestor, forefather, progenitor, foremother, forebear; Antonyms of GRANDMOTHER: family, children, daughter, son, offspring, issue, seed, stock.
DA: 74 PA: 97 MOZ Rank: 12