dry spell

noun
1
a period of time when it does not rain
کم‌بارانی, دوره خشک, دوره خشکی
2
a period of time during which somebody is unable to succeed at something
دوره بی‌ثمری, دوره بی موفقیتی, دوره رکود
That year, he struggled through a six-month dry spell in which he lost 17 consecutive matches.