From Longman Dictionary of Contemporary Englishundisguisedun‧dis‧guised /ˌʌndɪsˈɡaɪzd◂/ adjective [usually before noun] HIDE/NOT SHOW#an undisguised feeling is clearly shown and not hidden There was undisguised contempt in his voice.
Examples from the Corpus
undisguised• The bias of the work was undisguised.• undisguised contempt• When the Soviet plan reached Mr Bush, he welcomed it politely but with undisguised dismay.• They regarded each other, in fact, with undisguised hostility and contempt.• Throughout it all, there was an undisguised murmur of conversation in the church and Denis felt slightly sick.• It is blatant, undisguised opportunism by management, showing preference for what can be done, rather than what should be done.• They look at each other, disappointment tinged with undisguised relief. 