Answer:

crudest

Answer	Crossword Clue
CRUDEST	A low for immaturity.
CRUDEST	Most inexpert
CRUDEST	Least refined

CRUDEST	Least suave
CRUDEST	Least polished
CRUDEST	Most cobbled-together

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.