U₁N₁D₂E₁R₁P₃E₁R₁F₄O₁R₁M₃

20 points

UNDERPERFORM is validvalid

[v UNDERPERFORMED, UNDERPERFORMING, UNDERPERFORMS]

176,610 of 196,601 in NWL2023·also valid in CSW24

to perform insufficiently [v -ED, -ING, -S]

260,962 of 280,887 in CSW24·also valid in NWL2023