Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun sea-level

1 sense of sea level

Sense 1
sea level -- (level of the ocean's surface (especially that halfway between mean high and low tide); used as a standard in reckoning land elevation or sea depth)
       => water level -- (the level of the surface of a body of water)

Antonyms of adj sea-level

1 sense of sea-level

Sense 1
low-lying, sea-level -- (lying below the normal level; "a low-lying desert")

INDIRECT (VIA lowland) -> upland, highland -- (used of high or hilly country)

Similarity of adj sea-level

1 sense of sea-level

Sense 1
low-lying, sea-level -- (lying below the normal level; "a low-lying desert")
       => lowland (vs. upland) -- (of relatively low or level country)