1.
spicy, hot (taste)
Describes food that is spicy or hot (chili-hot, not temperature-hot).
2.
salty
Can also mean salty, though しょっぱい (shoppai) is more common for 'salty' in eastern Japan.
辛い is an i-adjective with two main meanings: spicy and salty.
MEANINGS:
1. Spicy/hot (most common): 辛い料理 (spicy food)
2. Salty (regional): More common in western Japan; eastern Japan prefers しょっぱい
FORMS:
- Negative: 辛くない
- Past: 辛かった
- Adverb: 辛く
CAUTION - DIFFERENT WORD:
辛い means "painful, hard, difficult" - same kanji but different reading and meaning entirely.
COMMON EXPRESSIONS: