Unbusinesslike \Unbusinesslike\
See {businesslike}.
18 Moby Thesaurus words for "unbusinesslike": amateurish, semiskilled, unaccomplished, uncoached, unendowed, unfinished, ungifted, uninitiated, unpolished, unprepared, unprimed, unprofessional, unschooled, unskilled, untalented, untaught, untrained, untutored