Lacking professional skill or expertise:
— Inexpert but conscientious efforts.

synonyms: amateur, amateurish, unskilled.

Roget 699: unskillful etc. 698; inexpert; bungling etc. v.; awkward, clumsy, unhandy, lubberly, gauche, maladroit; left-handed, heavy-handed; slovenly, slatternly; gawky.    adrift, at fault.    inapt, unapt; inhabile [Fr.]; untractable^†, unteachable; giddy etc. (inattentive) 458; inconsiderate etc. (neglectful) 460; stupid etc. 499; inactive etc. 683; incompetent; unqualified, disqualified, ill-qualified; unfit; quackish; raw, green, inexperienced, rusty, out of practice.    unaccustomed, unused, untrained etc. 537, uninitiated, unconversant etc. (ignorant) 491^†; shiftless; unstatesmanlike.    unadvised; ill-advised, misadvised; ill-devised, ill-imagined, ill-judged, ill-contrived, ill-conducted; unguided, misguided; misconducted, foolish, wild; infelicitous; penny wise and pound foolish etc. (inconsistent) 608.    ... show more

Polish: nieprofesjonalny, dyletancki, amatorski, laicki, niefachowy