threatening, severe, frightening, hostile, menacing, sinister, daunting, ominous
A synonym for temper is temperament.
A synonym for varied is diverse.
I don't think there is a synonym for adjoined it is an antonym.
A synonym of undeniable is nonviable.
A synonym for plausible is possible.
a sentence using forbidding: the house looked forbidding.
The forbidding chapter lead such a curiosity among the students
Sure. There are different ways to use forbidding... The haunted house looked forbidding and dark, so Sylvia was afraid to enter. Congress passed a law forbidding the use of certain substances.
The castle looked forbidding.Why are you forbidding me to drive?I am glad they passed laws forbidding people to smoke in restaurants.
An example would be "I am forbidding you from going to the party."
Unwelcoming.
A Valediction: Forbidding Mourning is a poem by John Donne.
I forbid you to know
Walking into the grim, forbidding house, Johnny felt a shiver travel down his spine.
An act of forbidding or dissallowing by force.
a conceit
friendly, approachable, undaunting