noun
busy period; busy season
Refers to a time of high activity or peak demand, often in business, work, or tourism contexts.
年末はどの業界も繁忙期だ。
The end of the year is a busy period for every industry.
観光地は夏が繁忙期です。
Summer is the busy season for tourist spots.
Adjective meaning 'busy', describing a person or schedule, while 繁忙期 is a noun for a busy time period.
Compound of 繁忙 (busy, hectic) + 期 (period, season). The word is a straightforward Sino-Japanese compound.