Synonyms of adjacent

1 Syllable

nigh, next, near, on

2 Syllables

nearby, touching, closer, handy, nigher, onto, nighest, against, handiest, handier, nearer, close, closest

3 Syllables

neighboring, nearest, adjoining, proximal, beside, near-at-hand, close-by, vincinal, contiguous, bordering, back-to-back

4 Syllables

coterminous, alongside, approximal, close-at-hand