Underfull

adj, noun

Definitions

Adjective
  1. 1
    Not full enough; not filled to available capacity.

    "Commands forcing a figure in a particular place may create underfull pages […]"

Noun
  1. 1
    A full house that is beaten by someone else's full house.

    "[…] let's say the flop comes 9-9-8, with the open pair on top. One player has J-T-9-8 for the overfull—9s full of 8s for the nut full house—while another player has 8-8-7-6 for 8s full of 9s and the "underfull". The player with the underfull is both getting smashed and drawing dead."

Etymology

Etymology 1

From under- + full.

Etymology 2

From under- + full house.

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