The phrase "are redolent of" means to suggest or evoke certain memories or associations. Some synonyms for this phrase could include "remindful of," "hint at," "reminiscent of," "allude to," "bring to mind," "conjure up," "evoke," "imply," "suggest," or "smack of." Using synonyms can help to add variety and nuance to our language, making our writing more expressive and engaging. When choosing a synonym, it's important to consider the context and tone of the sentence, and to select a word that accurately captures the intended meaning.