sublinear

From sub- +‎ linear.

sublinear (not comparable)

Placed below a line of text.
Synonym: infralinear
(botany) Almost but not quite linear in shape.
(mathematics) Describing a function that grows more slowly than a linear one.
- 2009 January 15, Christian Knigge, Nathan Leigh, Alison Sills, “A binary origin for ‘blue stragglers’ in globular clusters”, in Nature, volume 457, number 7227, →DOI:
  The sublinear dependence of blue straggler number on core mass is interesting.

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