unwise

Lacking or exhibiting a lack of wisdom; foolish or imprudent.

Not wise; Lacking wisdom or judgment; foolish; indiscreet: as, an unwise man; unwise kings.

Not dictated by wisdom; not adapted to the desired end; injudicious; imprudent: as, unwise measures; unwise delay.

Not wise; defective in wisdom; injudicious; indiscreet; foolish.

Not wise; defective in wisdom; injudicious; indiscreet; foolish.

not appropriate to the purpose

showing or resulting from lack of judgment or wisdom