Denote
have as a meaning
abrasive
causing irritation, harsh; grinding or wearing down; a substance used to smooth or polish
hindrance
block; obstacle
Irreducible
Incapable of being made smaller
necessitate
to require; to make necessary
passive
lacking in energy or will
Reconcile
(v.) to restore to friendship; to settle; to resign (oneself)
Somber
Dark, gloomy; depressed or melancholy in spirit
turbulent
disorderly, riotous, violent; stormy
ultimate
furthest or highest in degree or order