infirm vs solid

infirm

adj
  • Irresolute; weak of mind or will. 

  • Weak or ill, not in good health. 

  • Frail; unstable; insecure. 

verb
  • To contradict, to provide proof that something is not. 

solid

adj
  • Strong or unyielding. 

  • Financially well off; wealthy. 

  • Continuous; unbroken; not dotted or dashed. 

  • Worthy of credit, trust, or esteem; substantial; not frivolous or fallacious. 

  • That can be picked up or held, having a texture, and usually firm. Unlike a liquid, gas or plasma. 

  • Hearty; filling. 

  • Written as one word, without spaces or hyphens. 

  • Lacking holes, hollows or admixtures of other materials. 

  • Large in size, quantity, or value. 

  • Of a single color throughout. 

  • Measured as a single solid, as the volumes of individual pieces added together without any gaps. 

  • Excellent, of high quality, or reliable. 

  • Sound; not weak. 

  • United; without division; unanimous. 

adv
  • Solidly. 

  • Without spaces or hyphens. 

noun
  • An article of clothing which is of a single color throughout. 

  • Food which is not liquid-based. 

  • A substance in the fundamental state of matter that retains its size and shape without need of a container (as opposed to a liquid or gas). 

  • A three-dimensional figure (as opposed to a surface, an area, or a curve). 

  • A favor. 

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