He was sad.

Dictionary
Examples

He was sad till we put some leaves on him.	J'étais triste jusqu'à ce que nous y mettions des feuilles.
He was sad, so we're making him....	Il était triste, alors nous essayons.... - Oh !
He was sad to leave, but his girlfriend was very happy.	Il était triste de partir, mais sa petite amie était très heureuse.
He was sad because the woman he likes doesn't like him.	Il était triste parce que la femme qui lui plaît ne l'aime pas.
He was sad for a while, but soon smiled again.	Il a été triste un moment, mais il a vite retrouvé le sourire.
How was Miguel? - He was sad, but he tried to hide his state.	Comment allait Miguel ? – Il était triste, mais il essayait de le cacher.
He was sad because he didn't have a pretty girl to go to the dance with him.	Il était triste parce qu'il n'y avait pas de jolie fille pour l'accompagner au bal.
I went to see him, but he was sad.	Je suis allée le voir mais il était triste.
The other day, on the train, he was sad.	L'autre jour, dans le train, il était triste.
I asked him why he was sad.	Je lui ai demandé pourquoi il est si triste.
Mike was happy, but he was sad, too.	Mike était heureux, mais aussi triste.
He said he was sad.	Il a dit qu'il était triste.
If he was sad, maybe he did.	S'il était triste, il a pu le faire lui-même.
Yeah, he was sad.	Ouais, il était triste.
And he was sad.	Il était triste.
But he was sad.	- Mais il était triste.
And he was sad.	Il était triste, n'est-ce pas ?
All the people in the room knew that they would be going except for one man and he was sad.	Tout le monde dans la salle savait qu'ils y iraient excepté un homme et il était triste.
All the people in the room knew that they would be going except for one man and he was sad.	Tout le monde dans la salle savait qu'il y irait excepté un homme et il était triste.
And he was sad at that saying, and went away grieved: for he had great possessions.	Mais affligé de cette parole, il s'en alla tout triste, car il avait de grands biens.