Antonyms of adj 180th

1 sense of 180th

Sense 1
hundred-and-eightieth, 180th -- (the ordinal number of one hundred eighty in counting order)

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

Similarity of adj 180th

1 sense of 180th

Sense 1
hundred-and-eightieth, 180th -- (the ordinal number of one hundred eighty in counting order)
       => ordinal (vs. cardinal) -- (being or denoting a numerical order in a series; "ordinal numbers"; "held an ordinal rank of seventh")