Many German words can be converted into adjectives by adding suffixes. There are several options of suffixes that contribute to different meanings for adjectives. See below for ways that nouns can be changed into adjectives. See also
Suffixes in German Adjectives II.
| Suffix | Possible Meaning | Example |
| -haft | to accentuate a specific trait | Die Aufführung war sagenhaft./ The performance was marvelous |
| -los | without | Er ist schon seit Monaten arbeitslos./ He’s been unemployed for months. |
| -ig | in a certain way | Dieser Mann ist schläfrig./ This man is sleepy. |
| -isch | of origin, belonging to; also added to some foreign words | Ich bin italienisch; Der Junge ist autistisch/ I am italien;
The boy is autistic.
|
| lich | a characteristic, in the manner of | Ich finde das herrlich; Herzliche Grüβe/ I find that wonderful; Heartfelt Greetings. |
| -arm | > lacking in | seelenarm/ low, poor in spirit |
| -frei | without | arbeitsfrei / work-free |
| -leer | without | luftleer / air-free |
| -reich | plenty | vitaminreich/ vitamin-rich |
| -voll | plenty | eimervoll/ bucketfull |
| -fest | something stable, solid | wasserfest/ watertight |