Learner's definition of TERRIBLE
[more terrible; most terrible]
1 : very shocking and upsetting
a terrible [=horrible] disaster/crime
Traffic was held up by a terrible accident.
We just got some terrible [=dreadful] news.
2 : very bad or unpleasant
The garbage smells really terrible. [=awful]
I have a terrible cold.
What a terrible [=horrible] thing to say!
a terrible mistake
The service at that restaurant is terrible.
I'm a terrible chess player. = I'm terrible at chess. [=I play chess very badly]
I woke up this morning feeling terrible. [=very sick]
She feels terrible [=very sorry] that she hurt your feelings.