Nonwavering

Those adhering to this position also tend to assert that the therapist's nonwavering empathic interest allows the patient to express feelings...

In matters of transportation, however, I am a lifelong, nonwavering, dyed-in-the-wool Move-Your-Butt-ocrat.

A nonwavering tone should be heard at each frequency in each earphone. If this does not occur, the audiometer needs to be checked for frequency accuracy.