Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun quintillionth

1 sense of quintillionth

Sense 1
one-quintillionth, quintillionth -- (one part in a quintillion equal parts)
       => common fraction, simple fraction -- (the quotient of two integers)

Antonyms of adj quintillionth

1 sense of quintillionth

Sense 1
quintillionth -- (the ordinal number of one quintillion in counting order)

INDIRECT (VIA ordinal) -> cardinal -- (being or denoting a numerical quantity but not order; "cardinal numbers")

Similarity of adj quintillionth

1 sense of quintillionth

Sense 1
quintillionth -- (the ordinal number of one quintillion in counting order)
       => ordinal (vs. cardinal) -- (being or denoting a numerical order in a series; "ordinal numbers"; "held an ordinal rank of seventh")