bland; flat-tasting; lacking flavor
Describes food or drink that is coarse, lacking in subtlety or refinement of taste. Often used negatively for dishes that are too simple or uninteresting.
See also: 小味 (こあじ)
このラーメンは大味で、スープに深みがない。
This ramen is bland; the broth lacks depth.
彼の料理は大味だから、もう少し繊細さが欲しい。
His cooking is flat-tasting, so I wish it had a bit more delicacy.
Extended from the taste sense to describe performances, works, or personalities that lack subtlety, refinement, or interesting detail. Often implies something is too broad or simplistic.
あの映画は大味なストーリーで、すぐに飽きてしまった。
That movie had a dull, unimaginative story, and I got bored quickly.
彼の演技は大味で、細かい感情表現が足りない。
His acting is flat and lacks nuanced emotional expression.
Compound of 大 (large, broad) and 味 (taste). The figurative sense of 'dull, unimaginative' derives from the idea of something being too broad or lacking in fine detail.