15-letter words starting with subst
- substance abuse — long-term, pathological use of alcohol or drugs, characterized by daily intoxication, inability to reduce consumption, and impairment in social or occupational functioning; broadly, alcohol or drug addiction.
- substantiatable — to establish by proof or competent evidence: to substantiate a charge.
- substantiveness — a noun.
- substitutionary — a person or thing acting or serving in place of another.
- substratosphere — the upper troposphere.
On this page, we collect all 15-letter words starting with SUBST. It’s easy to find right word with a certain length. It is the easiest way to find 15-letter word that beginning with SUBST to use in Scrabble or Crossword puzzles.