Denshi Jisho — Online Japanese dictionary

軽い かるい 1: light (i.e. not heavy); feeling light (i.e. offering little resistance, moving easily);
2: light (i.e. of foot); nimble; agile;
3: non-serious; minor; unimportant; trivial;
4: slight; small; gentle; soft;
5: easy; simple;
6: indiscriminate
Common word, Adjective 
軽い かろい 1: light (i.e. not heavy); feeling light (i.e. offering little resistance, moving easily);
2: light (i.e. of foot); nimble; agile;
3: non-serious; minor; unimportant; trivial;
4: slight; small; gentle; soft;
5: easy; simple;
6: indiscriminate
Adjective 
軽い気持ち かるいきもち casual; doing something without taking it too seriously
Expression 
軽い故障 かるいこしょう soft failure
Noun, Computer terminology 
軽い犯罪 かるいはんざい minor offense; minor offence
Noun 

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