メカメカしい

i-adjective

mechanical-looking; overly mechanical

Colloquial adjective describing something that looks or feels excessively mechanical, often with a nuance of being clunky or lacking elegance.

• このロボット、ちょっとメカメカしすぎじゃない？

  Isn't this robot a bit too mechanical-looking?

• 新あたらしいスマホのデザインがメカメカしくてあまり好すきじゃない。

  The new smartphone's design is overly mechanical and I don't really like it.