Uninviting (adjective)

1. Not having an inviting appearance, demeanor, or atmosphere.
2. Not appealing or attractive enough to entice someone to participate.

Origin:

Derived from the word 'invite' meaning to extend a request to someone to come or participate in an event or activity.

Examples:

1. The old, rundown building had an uninviting exterior.
2. The stern-faced teacher had an uninviting demeanor that discouraged students from approaching her.
3. The crowded, noisy bar was an uninviting atmosphere for a quiet night out.
4. The bleak, dreary landscape was uninviting and did not inspire a sense of adventure.
5. The dull, monotonous party was uninviting and left guests feeling bored and unsatisfied.