What is another word for "rarely"?

Roget's Thesaurus (1911) lists these synonyms for "rarely": all, almost, and, any, between, blue, cull, decimate, decimation, diamond, diminish, eliminate, elimination, eradication, ever, exiguity, exiguous, experience, far, few, fewness, for, handful, hardly, has, here, infrequency, infrequent, infrequently, inhabitant, maniple, memory, million, minority, moon, much, not, number, often, once.