Synonyms of unhospitable

1 Syllable
tough, dour, grim
2 Syllables
odious, ugly
3 Syllables
abhorrent, frightening, hostile, glowering, unfriendly, off-putting, unpleasant, menacing, sinister, repellent, threatening
4 Syllables
disagreeable, repulsive, uninviting, offensive, foreboding
5 Syllables
unapproachable, inhospitable