Monthlong (adjective)

Lasting for the duration of one month.

Origin:

Formed from the words 'month' and 'long'.

Examples:

1. The monthlong project was a success.
2. The monthlong trip was a wonderful experience.
3. The monthlong festival was a great opportunity to showcase local talent.
4. The monthlong study was a rigorous examination of the subject.
5. The monthlong experiment was a challenging but rewarding experience.