From Longman Dictionary of Contemporary Englishinner voiceinner voiceINSTINCTthoughts or feelings that you do not express but seem to warn, criticize, or advise you My inner voice told me to be cautious. → voice
Examples from the Corpus
inner voice• It can be used as an inner voice in the woodwind ensemble, but tends to be obtrusive.• It can't be, an inner voice shrieked in violent protest.• But an inner voice tells me that it is not yet the real thing.• But not completely different, an inner voice amended doggedly.• Of course he wasn't, an inner voice taunted.• Cassius chanted to himself, his inner voice as mechanical as the movements of his body.• Emerson talks about listening to that inner voice and going with it, all voices to the contrary. 