The Collaborative International Dictionary of English v.0.48:
Cloudless \Cloud"less\, a. Without a cloud; clear; bright. [1913 Webster] A cloudless winter sky. --Bankroft. -- Cloud"less*ly, adv. -- Cloud"less*ness, n. [1913 Webster]WordNet (r) 3.0 (2006):
cloudless adj 1: free from clouds; "under a cloudless sky" [syn: cloudless, unclouded]