ripplelessadj.
/ˈrɪp(ə)lləs/, U.S. /ˈrɪpə(l)ləs/ Without a ripple; free from ripples; calm. Also: without causing ripples.
ΘΚΠ
the world > the earth > water > flow or flowing > state of sea > [adjective] > not rough
stillOE
plainc1330
smoothc1374
demure1377
calmc1440
softa1450
glassy1535
sleek1603
eddyless1621
oily smooth1803
waveless1804
foamless1821
undimpled1821
rippleless1832
1832 F. A. Butler Jrnl. 18 Aug. (1835) I. 14 No wind, the sea one rippleless sheet of lead.
1849 Zoologist 7 2542 Surveying the calm heavy rippleless swell of the sea.
1887 W. Rye Month on Norfolk Broads 54 The moonlight slept on the rippleless water.
1923 J. S. Huxley Ess. Biologist iii. 113 The Crested Grebe... Its brilliant white belly, protective grey-brown back, rippleless and effortless diving, [etc.].
1941 J. Steinbeck & E. F. Ricketts Sea of Cortez xiv. 131 The lagoon [was] rippleless.
1968 C. Beaton Diary Jan. in Self Portrait with Friends (1979) xxvii. 393 The water was almost rippleless, in fact it engulfed me like a caress.
2008 St. Petersburg (Florida) Times (Nexis) 22 Sept. 1 x That is about the time Griese stuck his head into the huddle, calm as a rippleless lake, and talked about making a few plays.
This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).
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adj.1832