passive

adjective

yielding without resistance, submissive

abrasive

noun

substance used for grinding, an irritant adjective causing irritation

reconcile

verb

to bring together or in harmony, to make friends again

denote

verb

to be a sign of, to indicate or mean explicitly

somber

adjective

gloomy, sad, solemn and serious

hindrance

noun

an action, person or thing that impedes, obstacle

turbulent

adjective

violently agitated, disorderly, stormy

irreducible

adjective

not capable of being made smaller or simpler

ultimate

adjective

last or final, basic noun the final point

necessitated

verb

to make something unavoidable