The Collaborative International Dictionary of English v.0.48:
Malaise \Ma`laise"\, n. [F., fr. mal ill + aise ease.] (Med.) An indefinite feeling of uneasiness, or of being sick or ill at ease. [1913 Webster]WordNet (r) 3.0 (2006):
malaise n 1: physical discomfort (as mild sickness or depression) [syn: malaise, unease, uneasiness]