slack vs smooth

slack

adj
  • Lax. 

  • Moderately warm. 

  • Vulgar; sexually explicit, especially in dancehall music. 

  • Not active or busy, successful, or violent. 

  • Excess; surplus to requirements. 

  • Lax; not tense; not firmly extended. 

  • Lacking diligence or care; not earnest or eager. 

  • Moderate in speed. 

  • Weak; not holding fast. 

adv
  • Slackly. 

verb
  • To slacken. 

  • To lose cohesion or solidity by a chemical combination with water; to slake. 

noun
  • Unconditional listening attention given by client to patient. 

  • A temporary speed restriction where track maintenance or engineering work is being carried out at a particular place. 

  • A tidal marsh or shallow that periodically fills and drains. 

  • The part of anything that hangs loose, having no strain upon it. 

  • Small coal; coal dust. 

  • A valley, or small, shallow dell. 

smooth

adj
  • Bland; glib. 

  • Having derivatives of all finite orders at all points within the function’s domain. 

  • Flowing or uttered without check, obstruction, or hesitation; not harsh; fluent. 

  • Natural; unconstrained. 

  • Not grainy; having an even texture. 

  • Without difficulty, problems, or unexpected consequences or incidents. 

  • Involuntary and non-striated. 

  • That factors completely into small prime numbers. 

  • Having a texture that lacks friction. Not rough. 

  • Unbroken. 

  • Lacking marked aspiration. 

  • Lacking projections or indentations; not serrated. 

  • Placid, calm. 

  • Having a pleasantly rounded flavor; neither rough nor astringent. 

  • Suave; sophisticated. 

noun
  • The analysis obtained through a smoothing procedure. 

  • Something that is smooth, or that goes smoothly and easily. 

  • A domestic animal having a smooth coat. 

  • A member of an anti-hippie fashion movement in 1970s Britain. 

  • A smoothing action. 

verb
  • To make smooth or even. 

  • To make straightforward or easy. 

  • To stroke; especially to stroke an animal's fur. 

  • To reduce to a particular shape or form by pressure; to press, to flatten. 

  • To calm or palliate. 

  • To capture important patterns in the data, while leaving out noise. 

adv
  • Smoothly. 

How often have the words slack and smooth occurred in a corpus of books? (source: Google Ngram Viewer )