1) Balky 2) Being in a tense state 3) Difficult to control 4) Edgy 5) Fidgety 6) Fractious 7) French word used in English 8) High-strung 9) Highly strung 10) Impatient 11) In suspense 12) Jittery 13) Jumpy 14) Nervous 15) Nervy 16) On edge 17) Overstrung 18) Tense 19) Unruly; balky 20) Unsettled 21) Uptight Found on https://www.crosswordclues.com/clue/restive
• (a.) Unwilling to go on; obstinate in refusing to move forward; stubborn; drawing back. • (a.) Impatient under coercion, chastisement, or opposition; refractory. • (a.) Inactive; sluggish. • (a.) Uneasy; restless; averse to standing still; fidgeting about; -- applied especially to horses. Found on http://thinkexist.com/dictionary/meaning/restive/
Rest'ive adjective [ Old French restif , French rétif , from Latin restare to stay back, withstand, resist. See Rest remainder, and confer Restiff .] . Unwilling to go on; obstinate in refusing to move forward; stubborn; drawing back. « Restive or rest... Found on http://www.encyclo.co.uk/webster/R/64
adjective impatient especially under restriction or delay; `the government has done nothing to ease restrictions and manufacturers are growing restive` Found on https://www.encyclo.co.uk/local/20974