inexpert
Word family (noun) expert expertise (adjective) expert ≠ inexpert (adverb) expertly ≠ inexpertly
From Longman Dictionary of Contemporary Englishinexpertin‧ex‧pert /ɪnˈekspɜːt $ -ɜːrt/ adjective formal GOOD ATnot having the skill to do something OPP expert an inexperienced and inexpert teacher —inexpertly adverb