Penchant refers to a strong liking for something, or a strong tendency to behave in a certain way. It is usually used with for.

// My penchant for mathematics helped me become an engineer.

Untoward is a formal word that describes something that is improper or inappropriate, or that is adverse or unfavorable.

// The medication is safe and effective, with no known untoward side effects.

// The investigation found that nothing untoward had happened at the event.

To elucidate something is to make it clear or easy to understand.

// The writer elucidates complex medical findings for a general audience.

Derelict is a formal word that describes something that is no longer cared for or used by anyone. It can also describe someone who is negligent or who fails to do what needs to be done.

// The kids made sure to stay away from the spooky derelict houses in the neighborhood on Halloween.

// The officers were charged with being derelict in their duty.

Something described as flippant, such as behavior or a comment, is lacking in proper respect or seriousness.

// The celebrity made a flippant remark when questioned about the scandal.

A hobbit is a member of a fictitious peaceful and friendly race of small humanlike creatures that dwell underground.

// The story was filled with all sorts of imaginary people, including hobbits.

To garble something, such as a word, name, message, etc., is to cause it to be unclear or distorted. This type of garbling can be the result of an accident, ignorance, or a transmission error. Garble can also mean "to so alter or distort as to create a wrong impression or change the meaning."

// I was so nervous I garbled their names.

To permeate is to pass or spread through something.

// The scent of lilacs permeated the room.

// A feeling of anxiety permeated the office as everyone rushed to meet the deadline.