How do you spell Artless

Available Definitions:
1)  a. - Wanting art, knowledge, or skill; ignorant; unskillful.
2)  a. - Contrived without skill or art; inartistic.
3)  a. - Free from guile, art, craft, or stratagem; characterized by simplicity and sincerity; sincere; guileless; ingenuous; honest; as, an artless mind; an artless tale.