refractory (formerly refractary) /ri-frakˈtə-ri/

1. Unruly
2. Unmanageable
3. Obstinate
4. Perverse
5. Resistant to ordinary treatment, stimulus, disease, etc
6. Esp difficult to fuse
7. Fire-resistant

A substance that is able to resist high temperatures, etc, used in lining furnaces, etc

refracˈtorily adverb

refracˈtoriness noun

refractory period noun (biology)

For an organism or an excitable tissue, the period of zero response following a previous response

• have someone's guts
• have someone's guts for garters
• have someone's measure
• have someone's number
• have something against
• have something going for one
• have taped
• have the advantage of
• have the ball at one's feet
• have the best of it
• have the black ox tread on one's foot
• have the bulge on someone
• have the cards stacked against
• have the cards stacked in favour of
• have the edge
• have the goods on
• have the heart
• have the hots for
• have the jitters
• have the jump on
• have the key of the door
• have the key of the street
• have the last laugh
• have the laugh of
• have the law of