Antonyms of adj commodious

1 sense of commodious

Sense 1
commodious (vs. incommodious), convenient -- (large and roomy (`convenient' is archaic in this sense); "a commodious harbor"; "a commodious building suitable for conventions")

incommodious (vs. commodious) -- (uncomfortably or inconveniently small; "incommodious hotel accommodations")
        => cramped -- (constricted in size; "cramped quarters"; "trying to bring children up in cramped high-rise apartments")

Similarity of adj commodious

1 sense of commodious

Sense 1
commodious (vs. incommodious), convenient -- (large and roomy (`convenient' is archaic in this sense); "a commodious harbor"; "a commodious building suitable for conventions")
       => roomy, spacious -- ((of buildings and rooms) having ample space; "a roomy but sparsely furnished apartment"; "a spacious ballroom")