heavy adj.
1 weighing a lot
VERBS be, feel, look, seem My suitcase was beginning to feel very heavy. | become, get You're getting too heavy to carry! | make sth The bottles of wine made the bag even heavier. | find sth I didn't find it too heavy to carry.
ADV. extremely, really, very | fairly, pretty, quite, rather Be careful. That box is rather heavy.
2 worse than usual
VERBS be | become, get The rain was getting quite heavy.
ADV. extremely, really, very The traffic's really heavy on the bypass. | fairly, pretty, quite
You can also check other dicts: heavy (English, 中文解释 ), wordnet sense, Collins Definition