without skill

unprofessional

not adequate; not enough; (of a person) not able, skilled or strong enough

defective, insufficient, incompetent

without ability or talent

unskilful, unable

not so great as the other

inferior, secondary

to let or bring (something) down

under, inferior

smaller or less important (than others); a person not yet legally of age (under 18 in GB)

insignificant, small

coming after the first; less important or less strong

subordinate; less important

not limited or restricted; absolute; not qualified

not prepared, incompetent

not sophisticated

natural, simple