For man pages I use "no adjustment" (".na"; same output as for ".ad l"), see for example a snippet from:
.\" Automatically generated by Pod::Man 4.11 (Pod::Simple 3.35) . [...] .IX Title "A2PING 1" .TH A2PING 1 "2019-11-28" "a2ping" "Peter Szabo" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh . -.- Adjustment (and hyphenation) is a waste of processor's time and should not be default practice. By adding ".na" before the ".TS" line and ".ad" after the ".TE" line, all the repeated ".ad l" in table-lines are not needed.