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thickheaded; obtuse; stupid
slow; sluggish; inert; lethargic
indulgent (esp. to the opposite sex); doting
のろいなりに頑張った。
Slow as he was, he gave it his best.
この電車はのろいのでいつも遅刻する。
This train is slow, so I'm always late.
新入社員の頃は要領が悪くてのろかったが、今は仕事が速い。
When I was a new employee I was clumsy and slow, but now I work fast.