Synonyms of tail off/away in English:

tail off/away


See definition of tail off (or away)

phrase

1‘the old lady's voice tailed off’

SYNONYMS
fade, wane, ebb, dwindle, decrease, lessen, get less, diminish, decline, subside, abate, drop off, drop away, fall away, peter out, taper off
let up, ease off, die away, die out, die down, go into decline, waste away, recede, relent, desist, weaken, come to an end
ANTONYMS

increase, get more intense