1.
easy, simple
Describes something that is not difficult to do or understand. The opposite of 難しい (difficult).
2.
brief, concise
Can also describe something that is simple and not elaborate.
簡単 is a na-adjective with two main meanings: 'easy' (not difficult) and 'simple/brief' (not elaborate).
FORMS:
- Na-adjective: 簡単な + noun
- Adverb: 簡単に (easily, simply, briefly)
COMMON EXPRESSIONS:
- 簡単に言うと: to put it simply
- 簡単に説明する: to explain briefly
- 思ったより簡単: easier than expected
- 簡単な料理: simple cooking / easy recipes
OPPOSITES:
CAUTION:
In some contexts, 簡単に can imply 'carelessly' or 'too easily': 簡単に諦めるな (Don't give up so easily).