Synonyms for difficilis
- arduus – difficult, proudly elevated
- durus – enduring, hard, harsh, rough, rude, strong, tough, uncouth
- edurus – hard
- ferreus – cruel, hard, made of iron, unbending, unfeeliing
- importunus – inconsiderate, troublesome, unfavorable, unsuitable
- incommodus – disagreeable, inconvenient, irksome, troublesome, unpleasant
- industrius – assiduous, diligent, hard, industrious
- molestus – annoying, disagreeable, troublesome