1 stupid

2 foolish

3 silly

4 slow-witted

5 clumsy

1 fool

2 idiot

1 coarse

2 rough

3 thick (for cylindrical objects)

4 unfinished

5 vulgar

6 rude

7 crude

1 stupid

2 clumsy

1 clumsy

2 awkward

3 stupid

1 lit. clumsy mouth and broken tongue (idiom); awkward speaker

1 lit. the clumsy bird flies early (idiom); fig. to work hard to compensate for one's limited abilities

1 thick stems and broad leaves (idiom)

2 boorish

3 rough and ready

4 sloppy

1 to churn out large quantities without regard for quality (idiom); rough and slipshod work

1 crude and ill-educated (idiom)