The phrase "insignificant change" refers to a small or unimportant alteration or difference. It suggests that the change is not significant enough to have a big impact or be worth paying much attention to. Full definition
Other hypotheses, predict the opposite — that the atmospheric response will counteract the CO2 increase and result in insignificant changes in global temperature. (uscentrist.org)
Even small and seemingly insignificant changes can affect how YOU use YOUR phone. (xda-developers.com)
This is a far from insignificant change, amounting to 32 % of the measured net ablation during the short period for which data is available. (realclimate.org)