Synonym: mournful. Similar words: plaintiff, complaint, plain, explain, complain, complain about, incentive, attentive. Meaning: ['pleɪntɪv] 
adj. expressing sorrow.
adj. expressing sorrow. 31. PLAINTIVE siren wails as a government unit , invisible in the darkness, patrols.
32. To a soundtrack created by the whales themselves—via Roger Payne's groundbreaking and album-charting recording of the plaintive song of the humpback whale—we moved slowly towards cetacean manumission.
33. Photo Gallery: Whales The plaintive song of the humpback whale can travel for great distances underwater.
34. Uncle Peter's voice came as from a far distance , plaintive, placating.
More similar words: plaintiff, complaint, plain, explain, complain, complain about, incentive, attentive, inventive, antivenom, preventive, substantive, intuitive, inattentive, quantitative, interactive, introspective, interrogative, collective bargaining, plait, plaid, lain, maintain, villain, plantain, ain't, paint, taint, faint, saint.