Elevator

Capacity

The ability to hold or contain people or things

Baleful

Harmful or deadly

Apprehensive

Capable of understanding or quick to do so

Ominous

Suggesting that something bad is going to happen in the future

Mechanism

A process, technique, or system for achieving a result

Undeniable

Clearly true : impossible to deny

Haltingly

Stopping often because of not being sure about what to say or do : not steady

Threadbare

Very thin and in bad condition from too much use

Sparse

Present only in small amounts : less than necessary or normal

Penetrating

Able to understand something clearly and fully through an object