aridity Get Printable Handwriting (a-rid-i-ty) 4 syllables Learn It! Spelling Test Definition noun. 1 a deficiency of moisture especially when resulting from a permanent absence of rainfall; 2 a condition yielding nothing of value Example Sentence Nothing grew due to the aridity of the area. Synonyms drought; dryness; thirstiness; aridness Antonyms wetness; monsoon Share with your friends: