Je was op zoek naar: optimistic (Engels - Xhosa)

he must always appear cheerful and optimistic.
kufuneka qho avele onwabile kwaye elindele okuhle.

too optimistic a view should also not be taken of the use of submarines as tankers.
ngokulindela okuhle kakhulu uluvo malungathathwa ekusebenziseni kwenkwili ngathi zinqanawa zokuthutha ipetroli.

it now seems certain, however, that the original expectations for the rapid adoption of nuclear power for marine propulsion were too optimistic.
ingathi ngoku iqinisekile, nokuba, okwakulindelekile ngokukhawuleziswa kokusetyenziswa kwamandla esazulu kwiinqanawa zorhwebo zelizwe xa zizonke eziqhutyelwa phambili yayilithemba elikhulu.

optimistic forecasts suggest that nuclear power will become competitive with other types of propulsion plant for powers in excess of 15,000 kw within a few years.
ukuba nethemba ngenx engaphambili kwebisa ukuba amandla esazulu kuya kukhaphisana nezinye iintlobo zeematshini eziqhubela phambili zamandla agqithisileyo eshumi ahinesihlanu amawaka eekilowadzi kwimi nyaka embalwa.

despite increasing contradictions, seaborne world trade will continue to increase, and so will the size of the world merchant fleet, although it will probably be necessary to downgrade some of the over-optimistic forecasts that were made some years ago.
ngaphandle kokukhula kokuphikisana uthengiso lwelizwe ngolwandle luza kuqhubeka lusanda nobungakanani babathengisi belizwe uzakuba namendu nangona kuzakuba yimfuneko ukwehlisa ukuzithemba kakhulu gqitha obekwenziwe kwiminyaka edlulileyo.