Defn: Useless; unprofitable. [Obs.] Bacon.

INUTILITY
In`u*til"i*ty, n. Etym: [L. inutilitas: cf. F. inutilité.]

Defn: Uselessness; the quality of being unprofitable; unprofitableness; as, the inutility of vain speculations and visionary projects.

INUTTERABLE
In*ut"ter*a*ble, a.

Defn: Unutterable; inexpressible. Milton.

IN VACUO
In` vac"u*o. Etym: [L.] (Physics)

Defn: In a vacuum; in empty space; as, experiments in vacuo.

INVADE
In*vade", v. t. [imp. & p. p. Invaded; p. pr. & vb. n. Invading.]
Etym: [L. invadere, invasum; pref. in- in + vadere to go, akin to E.
wade: cf. OF. invader, F. envahir. See Wade.]

1. To go into or upon; to pass within the confines of; to enter; — used of forcible or rude ingress. [Obs.] Which becomes a body, and doth then invade The state of life, out of the grisly shade. Spenser.

2. To enter with hostile intentions; to enter with a view to conquest or plunder; to make an irruption into; to attack; as, the Romans invaded Great Britain. Such an enemy Is risen to invade us. Milton.