Labor market improving but still shows plenty of slack
In the longer-run, a key measure of inflation pressure is the amount of labor market slack (unemployed or underemployed people), which heavily influences the ability of workers to demand higher wages.
The standard reported unemployment rate data (i.e., the U-3 measure in the US) is useful in measuring labor market slack, but has limitations due (in part) to its definitions of “unemployed” and the “labor force” in the calculation: “unemployed” people as a percentage of the “labor force”. That is, to be counted as “unemployed”, a working-age person must be considered actively looking for a job (when asked if they have sought employment in the last four weeks in the monthly household surveys done by the Bureau of Labor Statistics, BLS). If they are not currently seeking employment for any reason, they are “not in the labor force” and thus do not count in the standard unemployment rate, even if they consider themselves unemployed.