sąžiningas in English:

Winning the competition is important. However, fair play is more important. You need to understand that winning is not the most important thing.

Fair competition is necessary for the healthy growth of industry.

Fair enough!

I found one day in school a boy of medium size ill-treating a smaller boy. I expostulated, but he replied: "The bigs hit me, so I hit the babies; that's fair." In these words he epitomized the history of the human race.

I had a dream last night, about silk and fine cloth or about equality and fair trial.

Our land abounds in nature’s gifts, Of beauty rich and rare; In history’s page let every stage, Advance Australia Fair!

In joyful strains then let us sing: “Advance Australia Fair!”

We insist that during the next three days you make decisions which are fair to all generations and which show an active concern for the environment.

Everyone is entitled in full equality to a fair and public hearing by an independent and impartial tribunal, in the determination of his rights and obligations and of any criminal charge against him.

I will not say play fair but I would wish that you refrain from indiscreet acts.

Aiming at a fair selection, the test's subject will be the same for all of you scientists of the world: write a scientific publication in English!

Only a male intellect clouded by the sexual drive could call the stunted, narrow-shouldered, broad-hipped and short-legged sex the fair sex.

She hit upon the idea of staging what she calls vintage fairs. /fɛər/

The missing 6-year-old has fair hair, green eyes and was last seen dressed in a yellow t-shirt.

a book fair / the Frankfurt Book Fair / a trade fair (=where companies show their newest products)

A conscientious teacher may feel inclined to take work home.

I'm conscientious - I always do my homework.

However, for conscientious MEPs and those in the non-attached group, it is a nightmare.

Though Alfred is scrupulous in fulfilling his duties at work, he is less conscientious about his obligations at home.

I'm diligent but not always conscientious. Sometimes I complete task inaccurate and in a slipshod manner

a conscientious worker

She's a conscientious judge, who does not let personal prejudices influence her decisions

He's maybe not our brightest employee, but certainly a conscientious one.

In either case he always answered them, for he was conscientious.

Sharon works very hard and is conscientious.

Miss Dorota is the most conscientious worker in our company.

I know we can rely on them to get the job finished on time. They are very conscientious.

She's so conscientious-she learns everyday!

She's very thorough and conscientious. / a conscientious student/teacher/worker

At the end, the conscientious girl gave up with her English homework, and started to revise her list of Ainu words.