1.
bad-tasting, unappetizing
Describes food or drink that tastes bad. The opposite of おいしい (delicious). Use with caution as it can be rude if directed at someone's cooking.
2.
awkward, unfavorable
Can also describe a situation that is problematic, inconvenient, or in bad shape. This sense is common in casual conversation.
不味い describes something unpleasant, either in taste or situation.
SENSE 1 - BAD-TASTING:
The direct opposite of おいしい. Considered blunt and potentially rude when referring to someone's cooking.
SENSE 2 - PROBLEMATIC:
Very common in casual speech to describe awkward or bad situations.
COMMON EXPRESSIONS:
WRITING:
Usually written in hiragana (まずい). The kanji 不味い is less common.
CONTRAST: