very small:
You can grow dwarf conifers in pots on the patio.

verb to make sth seem small or unimportant compared with sth else 使显得矮小;使相形见绌
The old houses were dwarfed by the huge new tower blocks.
这些旧房子在新建的高楼大厦的映衬下显得十分矮小。

dwarf stars (白矮星)