† ˈcounter-ˌsea Obs.
[counter- 3, 6.]
A sea running against the course of a ship, or against another sea or current.
| 1599 Hakluyt Voy. II. ii. 130 We met with a countersea out of the North boord, and the last voyage in this very place we had the countersea out of the South, being very calme weather. 1610 Holland Camden's Brit. II. 60 [The Irish Sea] rageth all the yeere long with surging billowes and counter seas. |