Unattached rhymes with:
attached, reattached, attached, detached, reattached, attached, detached, dispatched, hatched, latched, macht, matched, mismatched, overmatched, patched, reattached, scratched, snatched, thatched, unmatched
Unattached sounds like:
unadjust, unadjusted, undecided, undetected, undisguised, uneducated, unhedged, unindicted, unmatched, unmitigated, unnoticed, untaxed, untested, untouched