Synonyms and Antonyms of impromptu (ĭm-prŏmpto͝o, -tyo͝o)

extempore unprepared offhand extemporaneous extemporary improviso off-the-cuff ad libitum spontaneously ad-lib improvised snap spur-of-the-moment unrehearsed extemporization improvisation casual improvisational improvisatorial impulsive informal spontaneous sudden unexpected unpremeditated unstudied improvise offhanded ad-libbed autoschediastic improvisatory autoschediasm

prepositionared rehearsed designed premeditated deliberate

prepared open-mike planned all-night impromtu on-stage

impromptu ₁₇

optimum ₁₃ protium ₁₁

prompt ₁₂ import ₁₀ rumpot ₁₀

primp ₁₁ impro ₉ opium ₉ primo ₉ tromp ₉ trump ₉ tumor ₇

mump ₁₀ pimp ₁₀ pomp ₁₀ pump ₁₀ momi ₈ prim ₈ prom ₈ prop ₈ romp ₈ rump ₈ tump ₈ mort ₆ omit ₆ port ₆ pour ₆ pout ₆ ptui ₆ puri ₆ roup ₆ topi ₆ trim ₆ trip ₆ trop ₆ riot ₄ roti ₄ rout ₄ tiro ₄ tori ₄ tour ₄ trio ₄ trou ₄

imp ₇ mim ₇ mom ₇ mop ₇ mum ₇ pip ₇ pom ₇ pop ₇ pup ₇ umm ₇ ump ₇ mir ₅ moi ₅ mor ₅ mot ₅ mut ₅ opt ₅ pit ₅ piu ₅ poi ₅ pot ₅ pro ₅ pur ₅ put ₅ rim ₅ rip ₅ rom ₅ rum ₅ tip ₅ tom ₅ top ₅ tum ₅ tup ₅ upo ₅ urp ₅ ort ₃ our ₃ out ₃ rot ₃ rut ₃ tor ₃ tui ₃

mm ₆ mi ₄ mo ₄ mu ₄ om ₄ op ₄ pi ₄ po ₄ um ₄ up ₄ it ₂ oi ₂ or ₂ ti ₂ to ₂ ut ₂