rainless
- s lacking rain
a rainless month
rainless skies
- The night was dark but rainless; signal lights showed all clear.
- Heavy spring rains had made the area lush with foliage, then a hot, rainless summer had turned the greenery to tinder.
- During each of the past four rainless years, as many as 20,000 peasants have abandoned the nine-state northeastern area of Brazil for crowded urban centers along the coast.