Synonyms

Reward:
bribe, compensate, compensation, desert, gratification, guerdon, merit, pay, pay back, payment, payoff, recompense, remunerate, remuneration, repay, requital, requite, retribution, wage, wages.

Hostile:

adverse, aggressive, antagonistic, antipathetic, antisocial, averse, belligerent, contentious, contrary, icy, ill, inhospitable, inimical, opposed, opposing, opposite, pugnacious, repugnant, uncongenial, unfavourable, unfriendly, unkind, unsociable, warlike.