1Tastes bad; used for food or drink that is unpalatable, unpleasant-tasting, or awful.
このスープ、まずいね。どこか焦げた味がする。
This soup tastes awful. It has a bit of a burnt flavor.
昨日の弁当は時間が経っていて、ちょっとまずかった。
Yesterday's bento had been sitting too long and tasted a bit bad.
この店のコーヒーはまずくて飲めない。
The coffee at this shop is terrible; I can't drink it.
薬はやっぱりまずいから、飲むのが嫌だ。
Medicine really does taste bad, so I hate having to take it.
2Poorly done, clumsy, or unskillful — describes someone's performance, workmanship, or handling of something (sometimes written 拙い).
彼のプレゼンは構成がまずく、要点が伝わらなかった。
His presentation was poorly structured and failed to get the main points across.
こんなまずい仕上がりでは、お客さんには出せない。
With workmanship this poor, I can't serve it to customers.
彼の字はまずくて、何を書いているのか読めない。
His handwriting is so poor that I can't read what he's written.
3Unattractive or ugly; plain or homely in appearance — used for looks, design, etc.
その建物はデザインがまずくて、街の景観に合っていない。
That building has an unattractive design and doesn't fit the city's scenery.
写真写りがまずくて、どの写真も気に入らない。
I look bad in photos; I don't like any of the pictures.
4Awkward, problematic, or unfavorable — describes situations or actions that are risky or likely to lead to trouble.
まずい、電車が遅れているから会議に間に合わないかもしれない。
Oh no — the train is delayed, I might not make it to the meeting.
その言い方はまずくて、相手の気分を害してしまった。
That wording was awkward and ended up upsetting the other person.
予算が足りないまま始めるのはまずい。先に補助金の目処を立てよう。
Starting without enough budget would be unwise. Let's secure funding first.