Lacking cliffs; describing terrain or a landscape that has no steep rocky faces or precipices.
From 'cliff' plus the suffix '-less,' which means 'without' or 'lacking.' The suffix comes from Old English and is one of the most productive negative-forming suffixes in English.
'-Less' words are infinitely generative—theoretically you could describe anything as 'cliffless' if it lacks cliffs, making this a wonderfully flexible way English lets speakers create adjectives on the fly.
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