frustrar
abarrancar, abarreirar, abarrocar, abster, apejar, atalhar, atochar, atrambolhar, atrancar, atranqueirar, atrapachar, atrasar, atravancar, baldar, barrar, coibir, contribar, desaviar, desviar, dificultar, embaraçar, embargar, embarrancar, embelinhar, empatar, empeçar, empecer, empecilhar, encravelhar, engalhar, engravidar, entalar, entrambicar, estorvar, fechar, impedir, implicar, inabilitar, inhabilitar, inibir, obstaculizar, obstar, obstruir, opor, ostar, pear, pejar, prejudicar, prender, profaçar, represar, reter, retrair, suspender, sustar, tiranizar, tolher, tomar, torvar, vedar
adversar, avessar, colidir, combater, confutar, contestar, contraditar, contradizer, contrapontear, contrapor, contraprovar, contravir, contribar, defraudar, denegar, desencontrar, desfavorecer, entrechocar, impugnar, negar, opor, opugnar, refertar, refutar, responder, torpedear
atalhar, atrapalhar, atravancar, atravessar, contra-arrestar, desajudar, embaraçar, empacar, empecer, estorvar, impedir, obstar, prejudicar, sustar, transtornar, travessar
contradeclarar, contraditar, contradizer, contrapor, contrastar, denegar, desdizer, desmentir, impugnar, negar, rebater, refutar
contradizer, obstar
aborrecer, desagradar, desaprazer, descontentar, desgostar, desprazer, magoar, molestar, ofender