The adhesion of the gecko's footpads to smooth surfaces is largely attributed to van der Waals forces.

The new manager forces something down someone's throat by insisting his methods are the only way to do the job.

I appreciate your passion, but I don't like you forcing something down someone's throat during the meeting.

The forcedness of her apology was obvious to everyone.

Although now considered archaic, the word forceable once described obligations that were legally able to be forced upon a person.

She laughed forcedly to hide her discomfort.

The old law allowed officials to remove trespassers forceably, a practice later deemed unacceptable.