UNSKILLED

incompetent, unskilled

(adjective) not doing a good job; “incompetent at chess”

amateurish, amateur, inexpert, unskilled

(adjective) lacking professional skill or expertise; “a very amateurish job”; “inexpert but conscientious efforts”; “an unskilled painting”

unskilled

(adjective) not having or showing or requiring special skill or proficiency; “unskilled in the art of rhetoric”; “an enthusiastic but unskillful mountain climber”; “unskilled labor”; “workers in unskilled occupations are finding fewer and fewer job opportunities”; “unskilled workmanship”

Source: WordNet® 3.1

Etymology

Adjective

unskilled (comparative more unskilled, superlative most unskilled)

Of a person or workforce: not having a skill or technical training.

Of a job: not requiring skill or training.

Of a made object: inexpertly made or showing a lack of skill.

Source: Wiktionary