- 2. Advice, counsel, precept.
- 3. Direction, order, command, mandate.
Instructor, n. Teacher, tutor, preceptor, master, school-master, educator.
Instrument, n.
- 1. Tool, implement, utensil.
- 2. Medium, agent, means.
- 3. Writing, document, charter, deed, indenture.
- 4. Musical instrument.
Instrumental, a.
- 1. Conducive, subservient, serviceable, helping, helpful, assisting, auxiliary, ancillary, subsidiary, ministerial.
- 2. Of (musical) instruments.
Instrumentality, n. Agency, mediation, intervention.
Insubordinate, a. Disobedient, unruly, mutinous, riotous, seditious, disorderly, turbulent, ungovernable, refractory.
Insubordination, n.
- 1. Disobedience, revolt, insurrection, mutiny, riotousness, sedition.
- 2. Indiscipline, lax discipline, laxity.
Insufferable, a.
- 1. Intolerable, insupportable, unbearable, unendurable, that cannot be borne or endured.
- 2. Outrageous, disgusting, detestable, abominable, execrable.
Insufficiency, n. Inadequateness, inadequacy, incompetence, deficiency, lack, defectiveness, dearth.
Insufficient, a.
- 1. Inadequate, incompetent, deficient.