Encara no tenim significats per a "begin insensibly".
1After this event I began insensibly to withdraw from public affairs.
2He portrayed a raving maniac as large as life, and then, sitting down, began insensibly to hum-
3When four months had passed in this fashion, Weary began insensibly to turn more to the present and less often, to the past.
4"He tries to be more than he is," thought the lady: and she began insensibly to conceive him less than he was.